expert
Authority on something
An expert possesses deep knowledge or skill in a particular field, acquired through study or experience.
The word works as both noun and adjective: She consulted a tax expert; expert advice.
Expertise implies mastery beyond ordinary competence—experts are who you call when the problem exceeds normal ability.
He's no expert, but he knows enough to get by.
Having learned ability
- proficientHaving practiced ability
- experiencedHaving practical knowledge gained
- competentSufficiently able, qualified
- knowledgeableHaving extensive information
accomplished · qualified · trained · capable · talented · adept · seasoned · practiced
Supremely accomplished performer
- maestroDistinguished musical leader
- savantPerson of profound learning
- prodigyGifted youth with rare talent
- geniusPerson of rare brilliance
wizard · whiz · master · adept · connoisseur · polymath · pundit · ace
Professional advice provider
- mentorTrusted wisdom-giving advisor
- coachOne who instructs
- counselorOne who advises
- guideLeader or instruction book
analyst · strategist · adviser · instructor · tutor · facilitator · specialist · confidant
Skilled practical worker
- surgeonPhysician who operates
- engineerTechnical design professional
- architectBuilding design professional
- analystOne who examines systematically
scientist · pathologist · forensics · diagnostician · practitioner · professional · authority · researcher
Sports rule enforcer
- umpireSports match official
- adjudicatorOne rendering formal decisions
- assessorOne who estimates value
- appraiserEvaluator of monetary worth
evaluator · examiner · inspector · critic · arbitrator · panelist · juror · reviewer
Inspiring figure or celestial body
- trailblazerFirst to forge ahead
- pioneerEarly explorer or settler
- visionaryImaginative planner of futures
- leaderOne who guides others
champion · authority · thought-leader · influencer · icon · star · eminence · figurehead
Sworn statement as evidence
- depositionFormal testimony under oath
- courtroomJudicial proceedings chamber
- forensicPertaining to legal investigation
- opinionSubjective personal belief
report · cross-examination · affidavit · litigation · credentials · rebuttal · tribunal
skilled
Having learned ability
- proficientHaving practiced ability
- experiencedHaving practical knowledge gained
- competentSufficiently able, qualified
knowledgeable · accomplished · qualified · trained · capable · talented · adept · seasoned · practiced · polished
virtuoso
Supremely accomplished performer
- maestroDistinguished musical leader
- savantPerson of profound learning
- prodigyGifted youth with rare talent
genius · wizard · whiz · master · adept · connoisseur · polymath · pundit · ace · maven
consultant
Professional advice provider
guide · analyst · strategist · adviser · instructor · tutor · facilitator · specialist · confidant · resource
technician
Skilled practical worker
- surgeonPhysician who operates
- engineerTechnical design professional
- architectBuilding design professional
analyst · scientist · pathologist · forensics · diagnostician · practitioner · professional · authority · researcher · scholar
referee
Sports rule enforcer
- umpireSports match official
- adjudicatorOne rendering formal decisions
- assessorOne who estimates value
appraiser · evaluator · examiner · inspector · critic · arbitrator · panelist · juror · reviewer · rater
luminary
Inspiring figure or celestial body
- trailblazerFirst to forge ahead
- pioneerEarly explorer or settler
- visionaryImaginative planner of futures
leader · champion · authority · thought-leader · influencer · icon · star · eminence · figurehead
testimony
Sworn statement as evidence
- depositionFormal testimony under oath
- courtroomJudicial proceedings chamber
- forensicPertaining to legal investigation
opinion · report · cross-examination · affidavit · litigation · credentials · rebuttal · tribunal
- skillsskills, skill, ability, abilities, competencies
- people rolesteacher, student, coach, instructor, trainer
- achievementaccomplished, accomplishing, achieved, achievement, accomplishment
- achieversachiever, high achiever, overachiever, go-getter, striver
- competition levelselite tier, top tier, mid tier, lower tier, upper tier
- elite performerssuperstar, virtuoso, all-star, MVP, maestro
expertnovice
Inexperienced newcomer to field
beginner · neophyte · apprentice · newcomer · greenhorn
expertamateur
Nonprofessional participant
layman · nonprofessional · lay person · nonexpert · layperson
- lived experienceKnowledge from personal participation
- science experimentMethodical investigation testing hypotheses
- work experienceRecord of past jobs
- life experienceAccumulated personal history
- learning experienceEvent yielding new understanding
- shared experienceEvent undergone by multiple people
experience, expertise, experiment, expertly, experts, expertness, expert witness, expert witnesses