| able to recognize(expression, adjective, idiom, understanding, keen) |
| accomplished(keen, smart, intelligent, expert, skilled) |
| active(sharp, bright, lively, alert, aware) |
| adept(expert, skilled, competent, polished, capable) |
| adroit(keen, smart, intelligent, expert, competent) |
| adult(adjective, cool, refined, practical, mature) |
| aesthetic(adjective, understanding, keen, sensible, certain) |
| agile(keen, smart, intelligent, competent, capable) |
| agreeably |
| alive to(expression, adjective, understanding, keen, sensible) |
| all ears(expression, sharp, bright, lively, active) |
| all the rage(expression, adjective, idiom, smart, new) |
| apperceptive(adjective, understanding, keen, sensible, certain) |
| appraised(adjective, alert, familiar, wise, knowledgeable) |
| appreciative(adjective, alert, familiar, wise, knowledgeable) |
| artful(keen, smart, intelligent, competent, shrewd) |
| artificial(adjective, cool, refined, practical, cultured) |
| assured(adjective, understanding, keen, sensible, certain) |
| at home with(expression, adjective, idiom, familiar, knowledgeable) |
| au fait(expression, adjective, keen, smart, familiar) |