hobby hobby /ˈhɑːbi/

noun

1. () An auxiliary activity  ( avocation , by-line , pursuit , hobby , sideline , spare-time activity )
   an auxiliary activity
    Painting miniature figurines is his favorite hobby.
   Painting miniature figurines is his favorite hobby.
   
   
2. Small Old World falcon formerly trained and flown at small birds  ( Falco subbuteo , hobby )
   small Old World falcon formerly trained and flown at small birds
   
   
3. A child's plaything consisting of an imitation horse mounted on rockers; the child straddles it and pretends to ride  ( hobby , hobbyhorse , rocking horse )
   a child's plaything consisting of an imitation horse mounted on rockers; the child straddles it and pretends to ride