| know ins and outs(expression, adjective, idiom, careful, aware) |
| know the score(expression, adjective, idiom, alert, familiar) |
| latched on(expression, adjective, alert, familiar, wise) |
| leagued(adjective, joint, linked, combined, homogeneous) |
| learned(adjective, familiar, rational, knowledgeable, tolerant) |
| lettered(adjective, smart, familiar, intelligent, brilliant) |
| like-minded(adjective, joint, linked, combined, homogeneous) |
| lined up(expression, adjective, linked, homogeneous, cooperative) |
| linked(adjective, joint, combined, homogeneous, cooperative) |
| no stranger to(expression, adjective, idiom, familiar, knowledgeable) |
| observant(adjective, cool, sensible, sympathetic, familiar) |
| observative(adjective, sympathetic, careful, cautious, aware) |
| observing(adjective, careful, knowledgeable, cautious, aware) |
| of one mind(expression, adjective, idiom, linked, homogeneous) |
| of the same opinion(expression, adjective, idiom, linked, homogeneous) |
| omniscient(adjective, smart, familiar, intelligent, brilliant) |
| on-line(adjective, internet, Internet) |
| on stream(expression, adjective, wired, networked) |
| on the Internet(expression, adjective, idiom, wired, networked) |
| on the ball(expression, adjective, idiom, careful, aware) |