adjective
conversant
kun-VUR-sunt/kənˈvɜːrsnt/
Familiar with something through experience or study.
The man is conversant with bicycle maintenance and explains how to adjust the brakes.

Etymology
The image of “turning about with” people gave the sense of keeping company with them. That habitual closeness also came to describe knowing a subject through familiar use or study.
In context
this initially abstruse math is now understandable by you. It's actually, in part, to congratulate you. At first you heard this foreign language, and now you're able to be somewhat conversant in it.
More examples
- Applicants must be conversant with basic accounting principles.
- Years of practice make her conversant with local building codes.
- He is conversant with the software but still checks the manual.
Similar words
- familiar
- Suggests general acquaintance without necessarily implying study or detailed knowledge.
- knowledgeable
- Emphasizes substantial knowledge rather than familiarity with a particular subject.