| enthrallment(noun, interest, excite, attention, occupation) |
| musing(noun, thought) |
| assimilation |
| brooding(noun, thought, consideration, thinking, vagueness) |
| brown study(noun, expression, idiom, thinking) |
| consideration(noun, mind, interest, notice, attention) |
| daydreaming(noun, thought, amusement, consideration, thinking) |
| deep thought(noun, expression, study, profound, absorption) |
| earnestness(noun, intensity, sincerity, seriousness, solemnity) |
| fascination(noun, interest, attention, occupation, concentration) |
| industry(noun, mind, interest, notice, attention) |
| lucubration(noun, thought) |
| meditation(noun, thought) |
| notice(noun, activity, concern, interest, attention) |
| pondering(noun, thought, consideration, thinking, vagueness) |
| alertness(noun, attention) |
| attentiveness(noun, activity, concern, mind, notice) |
| care(noun, activity, concern, interest, notice) |
| cogitation(noun, thought, consideration, thinking, vagueness) |
| compactness |