Synonym: avocation, pastime. Similar words: lobby, hobble, hobbing, crabby, phobia, gobble up, acrophobia, claustrophobic. Meaning: ['hɑbɪ /'hɒb-] 
n. 1. an auxiliary activity 2. a child's plaything consisting of an imitation horse mounted on rockers; the child straddles it and pretends to ride 3. small Old World falcon formerly trained and flown at small birds.
n. 1. an auxiliary activity 2. a child's plaything consisting of an imitation horse mounted on rockers; the child straddles it and pretends to ride 3. small Old World falcon formerly trained and flown at small birds. 
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1 Stamp collecting is my hobby.
2 My hobby is chess. Are you interested in learning?
3 Mr. Hobby is in conference with his advisers.
4 Rebecca's main hobby is trampolining.
5 Cooking is her pet hobby.
6 Alexander's main hobby was poker.
7 His hobby is building replicas of cars.
8 He decided to turn his hobby into a lucrative sideline.
9 He needs a hobby to keep him busy and stop him from getting into mischief.
10 He entered into politics as a hobby.
11 Photography is an expensive hobby.
12 I only play jazz as a hobby.
13 His secret hobby: performing magic tricks.
14 Find a hobby or interest which enthuses you.
15 unless you call watching TV a hobby.
16 Ben's hobby is restoring vintage motorcycles.
17 My hobby is stamp-collecting/collecting stamps.
18 Many retired people take up gardening as a hobby.
19 She has found a new hobby in her retirement.
20 Why don't you take up a new hobby?
21 She dabbles in painting as a hobby.
22 Angling is his main hobby.
23 His hobby is trolling for newbies.
24 Keeping carrier pigeons is his hobby.
25 Take up a relaxing hobby,(www.Sentencedict.com) such as knitting.
26 He takes photographs as a hobby.
27 It started as a hobby, but it got so addictive I had to keep on doing it.
28 Happy is the man who is living by his hobby. 
29 He hasn't got any hobbies-unless you call watching TV a hobby.
30 He went on at tedious length about his favourite hobby.