We found 6 dictionaries that define the word on one:

General (2 matching dictionaries)

1. on-one: Wordnik
2. On One: Wikipedia, the Free Encyclopedia

Slang (4 matching dictionaries)

3. on one: Green’s Dictionary of Slang
4. on one: English slang and colloquialisms used in the United Kingdom
5. on one, On One: Urban Dictionary

Definitions from Wikipedia (On One) ▸ noun:  the 9th studio solo album released by rapper, Keak da Sneak. Phrases: one on one, on the one hand, on one hand, on one side, draw on one side, more... ▸ Words similar to on one ▸ Usage examples for on one ▸ Idioms related to on one ▸ Wikipedia articles (New!) ▸ Words that often appear near on one ▸ Rhymes of on one ▸ Invented words related to on one