fire up
Proposed by a contributor, not yet supported by evidence.
Sense 1
Where it’s used:
Used
American English
Examples
Let's fire up the grill and have a barbecue.
Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30)
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Sense 2
Meaning · English
Of an engine or similar, to start.
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Sense 3
Meaning · English
To launch; to run.
Register: informal
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Common questions
What does “fire up” mean?
To ignite.
Is “fire up” formal or informal?
No register label has been reviewed yet — treat it as neutral and check the usage notes above.