jumbo
[adjective]
Synonyms: giant, gigantic, huge, immense, large, oversized

[TahlilGaran] English Synonym Dictionary ▲

Jum‧bo /ˈdʒʌmbəʊ/
a name for an elephant, used especially by children and in children's stories and songs

[TahlilGaran] Dictionary of Contemporary English ▲

I. jum‧bo /ˈdʒʌmbəʊ $ -boʊ/ adjective [only before noun] informal
[Date: 1800-1900; Origin: Jumbo, name of a very large elephant put on show in London and the U.S. in the 19th century, perhaps from mumbo-jumbo]
larger than other things of the same type:
jumbo-sized hot dogs

[TahlilGaran] Dictionary of Contemporary English ▲

II. ˈjumbo jet (also jumbo) noun [countable]
a very large plane for carrying passengers

[TahlilGaran] Dictionary of Contemporary English ▲