| 1. | an activity or interest pursued for pleasure or relaxation and not as a main occupation: Her hobbies include stamp-collecting and woodcarving. |
| 2. | a child's hobbyhorse. |
| 3. | Archaic. a small horse. |
| 4. | ride a hobby, to concern oneself excessively with a favorite notion or activity. Also, ride a hobbyhorse. |