Is “Jumbo” a Scrabble word?
Yes
JUMBO
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 Jumbo
noun
1.An especially large or powerful person, animal, or thing.
2.A platform-mounted machine for drilling rock.
Synonyms: drilling jumbo
adjective
1.Especially large or powerful.