ESN
/iːɛsˈɛn
/abbreviation
1 dated Educationally subnormal.
2Electronic serial number, a unique number programmed into a mobile phone which identifies it.
- up to one's (old) tricks
- up top
- up to par
- up to putty
- up to scratch
- up to snuff
- up to speed
- (up) to the hilt
- up to the mark
- up to the minute
- up to the (or one's) eyeballs
- up to the (or one's) eyes (in)
- uptown
- uptowner
- uptrend
- upturn
- UPU
- uPVC
- upvote
- upward
- upwardly
- upwardly mobile
- upwardly (or downwardly) mobile
- upward mobility
- upwards