to make a U-turn, to turn the car around
ugly, plain-looking
um, er (hesitating)
uncle (an older man; also 'you' or 'I')
uncomfortable, awkward
under, below
to understand
underpants, knickers
to lose your job
to cheat on (a partner), be unfaithful
school uniform
unity, solidarity
up to you, as you like
to use
useful, beneficial
usually, normally