| privy to(expression, adjective, active, affected, concerned) |
| sentient(adjective, understanding, keen, sensible, certain) |
| with it(expression, adjective, understanding, cool, keen) |
| au courant(expression, adjective, understanding, cool, keen) |
| aware(adjective, understanding, cool, keen, sensible) |
| conversant(adjective, understanding, keen, sensible, certain) |
| hep to(expression, adjective, understanding, cool, keen) |
| hip to(expression, adjective, cool, sensible, familiar) |
| informed(adjective, understanding, cool, keen, sensible) |
| on to(expression, adjective, understanding, cool, keen) |
| privy(adjective, wise, witting, aware, private) |
| wise(adjective, understanding, perceptive, private, discerning) |
| wise to(expression, adjective, understanding, cool, keen) |
| witting(adjective, understanding, keen, sensible, certain) |
| able to recognize(expression, adjective, idiom, understanding, keen) |
| abreast(adjective, familiar, knowledgeable, aware, savvy) |
| acquainted(adjective, understanding, keen, sensible, certain) |
| active(adjective, affected) |
| aesthetic(adjective, understanding, keen, sensible, certain) |
| alert(adjective, understanding, keen, sensible, certain) |