comboPronunciation: /ˈkɒmbəʊ/Definition of combo noun (plural combos) informal 1a small jazz, rock, or pop band. 2chiefly North American a combination, typically of different foods:a surf ‘n’ turf combo 3a guitar amplifier with an integral speaker rather than a separate one. Origin: 1920s (originally US): abbreviation of combination + -ocombo in other Oxford dictionaries Definition of combo in the US English dictionary