hot up
In real, traceable use. Part of the curated seed collection; community review is coming.
Sense 1
Meaning · English
To heat up: — To increase in temperature.
Examples
Wait for the water to hot up before adding the salt.
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
To heat up: — To become more heated.
Register: informal
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Sense 3
Meaning · English
To heat up: — To make or become more sexually appealing, enticing or exciting.
Register: informal
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Common questions
What does “hot up” mean?
To heat up: — To increase in temperature.
Is “hot up” formal or informal?
No register label has been reviewed yet — treat it as neutral and check the usage notes above.