| down with(expression, adjective, sensible, familiar, knowledgeable) |
| erudite(adjective, familiar, polite, refined, knowledgeable) |
| existent(present, new, current, modern, contemporary) |
| experienced(familiar, knowledgeable, skilled, competent, informed) |
| extant(present, new, current, modern, contemporary) |
| familiar with(adjective, familiar, knowledgeable, expert, skilled) |
| far-sighted(adjective, reasonable, rational, intelligent, sober) |
| felt(adjective, understanding, keen, sensible, certain) |
| go-go(adjective, alert, familiar, wise, knowledgeable) |
| groovy(adjective, cool, alert, familiar, wise) |
| hep to(expression, adjective, understanding, cool, keen) |
| hip to(expression, adjective, cool, sensible, familiar) |
| hot off press(expression, idiom, present, new, modern) |
| in |
| in-thing(new, current, stylish, advanced, contemporary) |
| in fashion(expression, cool, new, modern, contemporary) |
| in right mind(expression, adjective, idiom, understanding, reasonable) |
| in vogue(expression, cool, new, modern, contemporary) |
| inexperienced(adjective, unusual, strange, fresh, original) |
| instant(present, new, current, modern, contemporary) |