| attentive(adjective, understanding, keen, sensible, certain) |
| au courant(expression, adjective, understanding, keen, sensible) |
| awake(adjective, understanding, keen, sensible, certain) |
| aware(adjective, understanding, keen, sensible, certain) |
| awareness(noun, understanding, touch, pleasure, respect) |
| believable(adjective, sound, sensible, rational, intelligent) |
| believing |
| brainwork(noun, understanding, attention, hope, consideration) |
| catching sight of(verb, adjective, catching, spying, spotting) |
| cerebral(adjective, sound, sensible, rational, intelligent) |
| cerebration(noun, understanding, attention, hope, consideration) |
| certain(adjective, understanding, keen, sensible, alert) |
| clear-cut(adjective, sound, sensible, rational, intelligent) |
| clear-sighted |
| cogitation(noun, understanding, attention, hope, consideration) |
| cognition(noun, understanding, attention, hope, consideration) |
| cognitive(adjective, sound, sensible, rational, intelligent) |
| commonsensical(adjective, sound, sensible, rational, intelligent) |
| concluding(noun, understanding, attention, hope, consideration) |
| consciousness(noun, understanding, touch, pleasure, respect) |