| witting(adjective, understanding, knowledge, keen, sensible) |
| au fait(expression, adjective, idiom, adverb, familiar) |
| versant(adjective, knowledge, familiar, knowledgeable, skilled) |
| versed(adjective, adverb, knowledge, sensible, familiar) |
| au courant(expression, adjective, idiom, understanding, knowledge) |
| expert(adjective, familiar, knowledgeable, aware, informed) |
| up on(expression, adjective, idiom, knowledge, sensible) |
| acquaint |
| conscious(adjective, understanding, keen, sensible, alert) |
| educated(adjective, knowledge, familiar, knowledgeable, informed) |
| erudite(adjective, knowledge, experience, skill, familiar) |
| experienced(adjective, knowledge, experience, skill, expert) |
| accustomed(adjective, familiar, conversant, inured) |
| alert(adjective, understanding, keen, sensible, certain) |
| alive(adjective, sensible, alert, familiar, wise) |
| apprehensive(adjective, sensible, alert, familiar, wise) |
| attentive(adjective, understanding, keen, sensible, certain) |
| aware of(verb, expression, phrasal verb, knowledge, wise) |
| brainy(adjective, knowledge, experience, skill, expert) |
| cognizant of(verb, expression, adjective, phrasal verb, knowledge) |