olemus
valdkonnaspetsiifiliste eriteadmiste ja oskustega isik

Merriam-Webster:
one with the special skill or knowledge representing mastery of a particular subject
- Synonyms for expert
ace, adept, artist, authority, cognoscente, connoisseur, crackerjack (also crackajack), dab [chiefly British], dab hand [chiefly British], fiend, geek, guru, hand, hotshot, maestro, master, maven (also mavin), meister, past master, proficient, scholar, shark, sharp, virtuoso, whiz, wizard
- Antonyms for expert
amateur, inexpert, nonexpert

ülevaateid
https://www.dailywritingtips.com/20-synonyms-for-%E2%80%9Cexpert%E2%80%9D/

https://thesaurus.yourdictionary.com/expert

https://en.wikipedia.org/wiki/Expert

https://www.johndcook.com/blog/2014/10/18/experts-vs-professionals/

näiteid
- ala spetsialist
- tehniline spetsialist
- turvaspetsialist

vt ka
- ekspert
- meediakeel