/ ˈkɒmbəʊ; NAmE ˈkɑːmboʊ/ noun ( pl. -os )
1.
a small band that plays jazz or dance music
2.
( informal , especially NAmE ) a number of different things combined together, especially different types of food :
I'll have the steak and chicken combo platter.
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WORD ORIGIN
1920s (originally US): abbreviation of combination + -o .