Synonyms for Proficiency:
n.gift, prowess. knowledge, expertness, command, art. •ability, skillfulness (noun)
dexterity, competence, aptitude, know-how, mastery, talent, expertness, skill, expertise, facility, knack, knowledge.
practice, background, wisdom, sophistication, wit, savoir-faire.
craft, aptitude, adroitness, skill, talent, dexterity, competence, genius, acuity, mastery, artfulness, knack, deftness, technique, know-how, expertise, cunning, facility, adeptness, flair, ability, experience, capability.
Usage examples for proficiency
" The more serious events which gave my life this particular bias occurred in my twentieth year, when I had already left even the high school behind me; nor was I fully carried away by their influence till after my uncle had procured me several opportunities of proving my proficiency in my calling. – The Complete Historical Romances of Georg Ebers by Georg Ebers