Is “Hobby” a Scrabble word?
Yes
HOBBY
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Hobby
/ˈhɒ.bi/
noun
1.An activity that one enjoys doing in one's spare time.
“I like to collect stamps from different countries as a hobby.”
2.An extinct breed of horse native to the British Isles, also known as the Irish Hobby
Synonyms: avocation, pastime