| os | of or relating to the songbirds |
|---|---|
| os | passerine bird having specialized vocal apparatus |
| os | two names for the suborder of typical songbirds |
| os | an involuntary intake of breath through a wide open mouth |
| os | drowsiness and dullness manifested by yawning |
| os | an involuntary intake of breath through a wide open mouth |
| os | drowsiness and dullness manifested by yawning |
| os | showing lack of attention or boredom |
| os | a group of dead languages of ancient Italy |
| os | touch with the lips or press the lips (against someone's mouth or other body part) as an expression of love, greeting, etc. |
| os | mathematics: have at least three points in common with |
| os | biology: be intermediate between two taxonomic groups |