| informed of |
| keen(adjective, understanding, sensible, certain, alert) |
| know all the answers(expression, adjective, idiom, careful, knowledgeable) |
| know ins and outs(expression, adjective, idiom, careful, knowledgeable) |
| knowing(adjective, understanding, keen, sensible, certain) |
| knowledgeable(adjective, careful, cautious, aware, attentive) |
| known(adjective, understanding, keen, sensible, certain) |
| let into |
| mindful of |
| noticing(adjective, understanding, keen, sensible, certain) |
| noting(adjective, understanding, keen, sensible, certain) |
| observant(adjective, careful, knowledgeable, cautious, aware) |
| observative(adjective, careful, knowledgeable, cautious, aware) |
| on the ball(expression, adjective, idiom, careful, knowledgeable) |
| on the job(expression, adjective, idiom, careful, knowledgeable) |
| perceiving(adjective, understanding, keen, sensible, certain) |
| percipient(adjective, understanding, keen, sensible, certain) |
| plugged in(expression, adjective, careful, aware, attentive) |
| privy to |
| receptive |