We found 6 dictionaries that define the word on a mission:

General (3 matching dictionaries)

1. on a mission: Merriam-Webster
2. on a mission: Wiktionary
3. On a Mission (Katy B album), On a Mission (Trick Pony album), On a Mission (song): Wikipedia, the Free Encyclopedia

Slang (3 matching dictionaries)

4. on a mission: English slang and colloquialisms used in the United Kingdom
5. On a mission: Street Terms: Drugs and the Drug Trade
6. On a Mission: Urban Dictionary

Phrases: Men on a Mission, man on a mission, hes on a mission, man not on a mission, one on a mission, more... ▸ Words similar to on a mission ▸ Usage examples for on a mission ▸ Idioms related to on a mission ▸ Wikipedia articles (New!) ▸ Words that often appear near on a mission ▸ Rhymes of on a mission ▸ Invented words related to on a mission