| au courant(expression, adjective, cool, sensible, alert) |
| familiar(adjective, cool, knowledge, sensible, alert) |
| abreast(adjective, familiar, knowledgeable, competent, aware) |
| au fait(expression, adjective, familiar, knowledgeable, expert) |
| informed(adjective, cool, sensible, alert, familiar) |
| shrewd(sharp, smart, astute) |
| acquainted(adjective, knowledge, sensible, alert, familiar) |
| conversant(adjective, knowledge, sensible, familiar, knowledgeable) |
| familiar with(expression, expert) |
| aware(adjective, cool, sensible, alert, familiar) |
| cognizant(adjective, sensible, alert, familiar, wise) |
| conversant with |
| enlightened(adjective, alert, familiar, wise, knowledgeable) |
| home |
| knowing(adjective, cool, sharp, smart, sensible) |
| knowledgeable(adjective, cool, sensible, alert, familiar) |
| versed(adjective, cool, knowledge, sensible, familiar) |
| versed in(expression, adjective, familiar, knowledgeable, witting) |
| with it(expression, adjective, cool, sensible, alert) |
| abreast of(expression, current, informed, on, thereby) |