| seriousness(noun, importance, significance, intensity, warrant) |
| study(noun, mind, interest, notice, connection) |
| thought(noun, mind, interest, notice, attention) |
| abandon |
| application(noun, activity, mind, interest, notice) |
| ardency |
| ardour |
| awareness(noun, interest, notice, thought, concentration) |
| consciousness(noun, interest, notice, thought, concentration) |
| contemplation(noun, mind, interest, notice, attention) |
| engagement(noun, interest, connection, occupation, concentration) |
| exertion(noun, activity, care, vigor, intensity) |
| fascination(noun, interest, attention, occupation, concentration) |
| heartiness(noun, excitement, enthusiasm, keenness, readiness) |
| intensity(noun, activity, passion, spirit, care) |
| interest(noun, notice, attention, thought, concentration) |
| involvement(noun, interest, connection, occupation, concentration) |
| observance |
| obsession(noun, involvement, engagement) |
| spirit(noun, passion, determination, enthusiasm, inclination) |