50+ Recruitment Terms: Glossary for Recruiting & Search Firms

Recruitment has its own vocabulary, and it splits further depending on whether you’re running a contingency desk, a retained search, or an in-house talent team. 

This glossary covers 50+ recruitment terms and phrases: the everyday sourcing and screening vocabulary every recruiter should know, the metrics that actually run a firm, the business-model terms that separate contingency from retained work, and the newer AI and automation terms that are becoming part of the day-to-day toolkit in 2026.

Sourcing & candidate pipeline terms

1. Sourcing: The active process of identifying and reaching out to potential candidates, rather than waiting for them to apply. Sourcing channels include job boards, referrals, social platforms, and a firm’s own candidate database.

2. Passive candidate: Someone who isn’t actively job hunting but would consider the right opportunity if approached. Most senior and specialist hires come from this group, since the strongest candidates are rarely the ones applying to job ads.

3. Active candidate: Someone currently applying to open roles, whether employed or not. Active candidates are easier to reach but face more competition from other firms working the same talent pool.

4. Talent pool: The broader group of candidates a recruiter has identified as potentially qualified for a type of role, before any specific job order exists. A strong talent pool is built ahead of need, not scrambled together after a role opens.

5. Talent pipeline: The subset of a talent pool actively moving through stages toward a specific open role. Where a talent pool is a reservoir, a pipeline is water already flowing toward a hire.

6. Boolean search: A search method that combines keywords with operators like AND, OR, and NOT to narrow results (for example, “Java AND (Fintech OR Payments) NOT Intern”). It’s precise but brittle: it only finds candidates who used the exact words you searched for, which is one reason how AI reshapes recruiting has become a bigger part of sourcing conversations.

7. Candidate persona (ideal candidate profile): A written description of the traits, experience, and background that define a strong fit for a given role or client. Building this before sourcing starts keeps a search focused instead of reactive.

8. Employee referral: A candidate introduced by someone already working at, or previously placed by, the hiring firm. Referral hires typically convert at a much higher rate than any other channel, because the person making the introduction has already done informal vetting.

9. Database recruiting: Sourcing candidates who are already in a firm’s own ATS or CRM, rather than searching externally. It’s often the fastest and cheapest channel available, since these candidates already have context, history, and in many cases a relationship with the firm.

10. Longlist: An early-stage list of possible candidates for a role, before outreach or screening narrows it down. A longlist becomes a shortlist once real conversations have happened.

11. Employer branding: How a company or client is perceived by candidates, shaped by everything from job ad language to how candidates are treated during the process. Strong employer branding lowers the cost and effort of every future search, since candidates arrive already interested rather than needing to be convinced.

Screening, interview & assessment terms

12. ATS (Applicant Tracking System): Software used to manage candidates, jobs, and the hiring workflow in one place, from first contact through placement. Most firm-side ATS platforms also function as a CRM, since firms manage client relationships alongside candidate pipelines.

13. Screening: The process of evaluating candidates against a role’s requirements to decide who moves forward. Screening can be resume-based, conversation-based, or both, and its accuracy directly determines how much time gets wasted later in the process.

14. Resume parsing: The automated extraction of structured data (skills, employers, dates, education) from a resume or CV into a candidate record. Modern parsing tools handle inconsistent formatting far better than the keyword-matching parsers of a decade ago.

15. Shortlist: The small set of candidates presented to a hiring manager or client for real consideration, after sourcing and screening have already ruled out the rest. In retained search specifically, shortlist delivery is often the trigger for the second payment tranche.

16. Scorecard: A structured template used to rate candidates consistently against the same criteria, usually after an interview. Scorecards exist to stop hiring decisions from being decided by whoever talked most confidently in the room.

17. Structured interview: An interview format where every candidate is asked the same core questions in the same order, scored against the same criteria. It reduces bias and makes candidates genuinely comparable, at some cost to conversational flexibility.

18. Phone screen: A short, early-stage call (phone or video) used to confirm basic fit, availability, and interest before investing more time. It’s a filter, not a full evaluation.

19. Skills assessment: A test or exercise used to verify a candidate’s actual ability to do the work, rather than relying on self-reported experience. Common in technical and specialist roles where a resume alone doesn’t prove competence.

20. Reference check: Verifying a candidate’s claims and past performance by speaking with former managers, colleagues, or clients. It usually happens late in the process, after an offer is likely but before it’s extended.

21. Candidate ghosting: When a candidate stops responding without explanation, often after accepting an interview or even an offer. It runs in both directions: recruiters who go silent on candidates cause the same damage to their reputation as candidates who disappear.

Offer, hire & onboarding terms

22. Offer letter: The formal, written offer of employment, including compensation, start date, and role details. It’s the document a candidate is actually accepting, as distinct from any verbal offer that preceded it.

23. Counteroffer: When a candidate’s current employer offers a raise, promotion, or other incentive to keep them from leaving after they’ve already accepted or are considering another offer. A high counteroffer rate on a desk is usually a signal to negotiate earlier and harder, not just a bad-luck streak.

24. Time-to-hire: The number of days between a candidate’s first contact with the process and their acceptance of an offer. It measures the candidate-side experience, which is a narrower window than time-to-fill.

25. Offer acceptance rate: The percentage of extended offers that candidates actually accept. A low rate usually points to a mismatch between the offer and what the candidate was told to expect earlier in the process.

26. Background check: Verification of a candidate’s employment history, education, and sometimes criminal or credit history, typically completed after an offer but before a confirmed start date.

27. Onboarding: The process of integrating a new hire into their role and the organization, from paperwork through initial training. Recruiters and firms increasingly get measured on how well a placement lands in the first 90 days, not just whether it happened.

28. Drop-off (candidate drop-off): When a candidate exits the process at any stage, whether by choice, disqualification, or simply going quiet. Tracking where drop-off concentrates in a funnel usually reveals the actual bottleneck, which is rarely where people assume it is.

29. Ramp-up time: How long it takes a new hire to reach full productivity in their role. For firms working on a guarantee period, this is often the real test of whether a placement was actually a good one.

Metrics & business-model terms

The metrics below are the ones that actually show up in recruiter productivity data across firms, not just the ones that sound impressive in a pitch deck.

30. Time-to-fill: The number of days between a job order opening and a candidate accepting the role. Unlike time-to-hire, this metric starts from the client’s need, not the candidate’s first contact, which is why the two numbers are rarely the same.

31. Cost-per-hire: The total cost of filling a role, including advertising, tools, and recruiter time, divided by the number of hires. It’s a useful efficiency check, but a low cost-per-hire paired with high early turnover usually means corners got cut somewhere upstream.

32. Quality of hire: A measure of how well a placement actually performs in the role, typically assessed through manager ratings, retention, or performance data collected after the hire. It’s the metric most firms want and measure least consistently, because it requires following up long after the placement fee has already been paid.

33. Source of hire: Which channel (referral, database, job board, direct outreach) actually produced a given placement. Firms that build a real source of hire report are often surprised to find their own database quietly outperforms every paid channel they invest in.

34. Fill rate: The percentage of open job orders that get successfully filled within a given period. A dropping fill rate is usually the earliest warning sign of a sourcing or intake problem, well before revenue shows it.

35. Job order: An open position a client has authorized a recruiting firm to work, contingency or retained. It’s the firm-side equivalent of a “requisition” on the corporate hiring side.

36. Placement: A successfully completed hire resulting in a fee to the recruiting firm. This is the unit everything else in a firm’s business rolls up to.

37. Desk: A recruiter’s own portfolio of active clients, job orders, and candidates. Building and running a desk well, rather than just adding activity to it, is usually what separates a firm’s top billers from everyone else.

38. Contingency recruiting: A fee model where the firm gets paid only if and when it makes the placement, with no fee owed otherwise. Multiple firms are often working the same contingency role simultaneously, which rewards speed as much as fit.

39. Retained search: A fee model where the client pays the firm in structured installments to work a role exclusively, common for senior and hard-to-fill positions. Retained fees are typically owed across the engagement regardless of the exact final outcome, in contrast to contingency.

40. Tranches: The staged payments in a retained search, usually three: at kickoff when the search begins, at shortlist delivery when the first slate of candidates is presented, and at placement when the candidate accepts and starts. If the final salary negotiated differs from the original estimate, the last tranche adjusts to match the true total fee.

41. Direct hire: A placement where the candidate becomes a permanent employee of the client company, as opposed to a temporary or contract placement through a staffing firm.

42. RPO (Recruitment Process Outsourcing): An arrangement where a company outsources all or part of its hiring function to an external provider, which then runs sourcing, screening, and often the full process on the client’s behalf, typically at scale and over an extended contract rather than role by role.

43. Executive search: Retained recruiting focused specifically on VP-level and above, including C-suite and board placements. It runs on different tooling too, since search-specific work tends to outgrow generalist ATS platforms; our executive search software guide covers what that segment actually needs. Executive search firms generally work as consultants advising on a search, not as recruiters filling a requisition, and the language around a search (searches, not jobs; shortlists, not submissions) reflects that difference.

AI & automation terms

44. Agentic AI: AI that takes multi-step action on a recruiter’s behalf rather than just answering a question or generating text. In recruiting, this looks like an AI agent that summarizes a call, updates a CRM record, and flags a follow-up automatically, without a recruiter manually doing each step.

45. AI-native ATS/CRM: A platform where AI is built into the system of record itself, with full context on every candidate, client, and conversation, rather than an AI feature bolted onto software that predates it. Our breakdown of what makes an ATS AI-native goes deeper on the distinction, which matters practically: AI with full context on your database behaves very differently from AI querying a document with no memory of what came before it.

46. AI matching: Using AI to rank candidates against a role based on more than keyword overlap, factoring in context like career trajectory, notes, and prior conversations. Recruiterflow’s version of this is AIRA Matchmaker, which checks a firm’s existing database against a new role before any external sourcing happens.

47. Natural language search: Searching a candidate database by describing what you’re looking for in plain language instead of building a Boolean string. True natural language search reasons across a candidate’s full history rather than just converting your sentence into filters; Recruiterflow’s implementation of this is AIRA Search.

48. Auto-updating records: Candidate and client records that stay current automatically, pulling updates from calls, emails, and LinkedIn activity instead of relying on a recruiter to log everything by hand. In Recruiterflow, this happens through AIRA Notetaker and the Job Change Alert Agent, which flags when a candidate moves roles.

49. AI sourcing agent: An AI system that proactively surfaces candidates for a role, either from a firm’s own database or external sources, ranked and explained rather than just listed. The useful version tells you why a candidate was surfaced; the less useful version just hands you a list.

50. Recruitment automation: Rule-based workflows that trigger actions automatically, such as sending a follow-up email, moving a candidate to the next stage, or alerting a recruiter when a task is overdue. Our recruitment automation guide covers where automation and AI overlap and where they don’t: automation follows rules a person set, while AI can make judgment calls the rules didn’t anticipate.

51. Job change signal: An alert that a candidate already in a firm’s database has changed roles or companies, often the first indication that they’re newly reachable or newly relevant to an open search. Since a large share of placements come from candidates already in a firm’s own CRM, these signals are often more valuable than new sourcing.

52. AI notetaker: An AI tool that joins or transcribes a call, produces a summary, and updates the relevant candidate or client record automatically. It exists specifically to remove the blank-page problem of writing up call notes after the fact.

FAQs

What’s the difference between recruitment and talent acquisition? 

Recruitment usually refers to the tactical work of filling a specific open role: sourcing, screening, and placing candidates. Talent acquisition is the broader, more strategic function that includes workforce planning, employer branding, and building pipelines ahead of need, not just reacting to open job orders.

What’s the difference between contingency and retained recruitment? 

Contingency firms only get paid if they make the placement, and multiple firms often compete for the same role. Retained firms are paid in staged tranches to work a role exclusively, typically for senior positions, and are compensated across the engagement regardless of the precise final outcome.

What does ATS mean in recruiting? 

ATS stands for Applicant Tracking System, the software used to manage candidates and job openings through every stage of hiring. Most firm-side ATS platforms double as a CRM, since firms manage ongoing client relationships alongside candidate pipelines.

What is a passive candidate? 

A passive candidate is someone not actively looking for a new role but open to the right opportunity if approached directly. They typically represent the strongest and hardest-to-reach segment of the market, since they aren’t applying anywhere and have to be sourced.

What does RPO stand for in recruitment? 

RPO stands for Recruitment Process Outsourcing, where a company hands all or part of its hiring function to an external provider. Unlike a single contingency or retained search, RPO engagements usually run at scale across many roles over an extended contract.

Are recruitment terms different in the US vs. the UK? 

Mostly the same core vocabulary, with a few notable differences: what’s called a “resume” in the US is a “CV” in the UK for all roles, not just academic ones, and UK firms more commonly use “consultant” where US firms say “recruiter.” Fee structures and terms like retained, contingency, and RPO carry the same meaning in both markets.