Meaning of hobby

hob•by

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. a small horse.
4. to concern oneself excessively with a favorite notion or activity.

hob•by

1. a small Old World falcon, Falco subbuteo, formerly flown at such small game as larks.

Hob•by

1. born 1905, U.S. newspaper publisher and government official: first director of Women's Army Corps 1942–45; first Secretary of Health, Education, and Welfare 1953–55.