uncomparable - vacancy
- Under cover
- Under God the people rule
- Under my thumb
- Under no circumstances!
- Under one's breath
- Under petticoat government
- Under somebody's domination
- Under the counter
- Under the lash
- Under the weather
- Under Western eyes
- Under wraps
- Under-bidder
- Under-the-counter cash payments
- Underdog
- Underdone beef-steak
- Underdone steak
- Underfoot
- Underhand
- Underpass
- Understand as much as a pig does about poker
- Understand trap
- Underwear
- Unearthly hour
