U-turns (no -) 1  
ubiquity 1  
udder 1  
UFO 1   2  
ugly (to become -) 1  
ugly (to make -) 1  
ugly mug 1  
ugly thing 1  
ugly 1  
ulcer 1  
ulterior purpose 1  
ultimatum 1  
ultrafilter 1  
ultraproduct 1  
ultrasound 1   2  
ultraviolet 1  
umbilical cord 1  
umbilical 1  
umbrella stand 1  
umbrella 1  
umpire (to -) 1  
umpire 1  
un–  spesso corrisponde all'italiano in/dis/s–  (undecided/undo/unbalance)
un- 1   2  
unable to do (to be -) 1  
unable 1  
unabridged edition 1  
unacceptable 1   2  
unadorned 1  
unanimity 1  
unanimous 1  
unapproachable 1  
unarmed 1  
unassailable 1  
unattempted 1  
unattended 1  
unauthorized 1  
unaware 1   2  
unbalance (to -) 1  
unbalance 1  
unbalanced 1  
unbandage (to -) 1  
unbearable 1   2  
unbeatable 1  
unbecoming 1  
unbelievable 1  
unbiased 1   2  
unbleached 1  
unblock (to -) 1  
unbounded 1  
unbreakable 1  
unbreathable 1  
unbridled 1  
unbroken 1  
unbutton (to -) 1   2  
unbuttoned (to -) 1  
unceasing 1  
unceasingly 1  
uncertain 1   2   3  
uncertainty principle 1  
uncertainty 1   2   3   4  
unchangeable 1  
unchanged 1   2   3  
uncivilized 1   2  
uncle 1  
uncombed 1  
uncomfortable 1   2   3  
uncommon 1  
unconditional 1  
unconscious 1   2   3  
unconsciousness 1  
unconstitutional 1   2  
uncontaminated 1  
uncontrolled 1  
uncoordinated 1  
uncork (to -) 1  
uncouple (to -) 1  
uncover (to -) 1  
uncover one's arms (to -) 1  
uncover oneself (to -) 1  
uncovered cheque 1  
uncovered 1  
uncultivated 1  
undecided (to be -) 1  
undecided 1   2   3  
undefended 1  
undefined 1  
undemocratic 1  
undeniable 1  
under–  spesso corrisponde all'italiano "insufficientemente –" (undercooked)
under-the-counter 1  
under age 1  
under oath 1  
under 1  
undercarriage 1  
underdeveloped 1  
underemployment 1  
underestimate (to -) 1  
underflow 1  
undergo (to -) 1   2  
underground 1   2   3   4  
underhand 1  
underline (to -) 1  
undermine (to -) 1   2  
underneath 1  
undernourished 1   2  
underpants 1   2  
underpass 1  
underrate (to -) 1  
undersecretary 1  
undersigned 1  
underskirt 1   2  
understand (to -) 1   2   3   4   5   6   7   8  
understandable 1  
understanding 1   2   3   4   5  
understood (not -) 1  
understood (to make oneself -) 1  
understood 1  
undertake (to -) 1  
undertake a job on contract 1  
undertaker's 1  
undertaking 1  
underwater 1   2  
underwear 1  
underworld 1  
undeserved 1   2  
undeserving 1  
undisciplined 1  
undisputed champion 1  
undisputed 1  
undo (to -) 1   2   3   4   5   6  
undoubted 1  
undoubtedly 1  
undress (to -) 1   2  
undue 1  
undulation 1  
uneasiness 1  
uneasy (to become -) 1  
uneasy 1  
uneatable 1  
uneducated 1  
unemployed person 1  
unemployed 1   2  
unemployment 1  
unequal 1   2   3  
unequalled 1  
unescapable 1  
uneven 1   2   3   4   5   6  
unexceptionable 1  
unexpected 1   2   3   4   5  
unexpectedly 1   2  
unfailing 1  
unfair 1  
unfaithful (to be -) 1  
unfaithful 1  
unfasten (to -) 1  
unfavourable 1   2   3  
unfeeling 1  
unfinished 1  
unfit for use 1  
unfit 1  
unflexible 1  
unfold (to -) 1  
unforeseeable 1  
unforeseen 1   2   3  
unforgettable 1   2  
unforgivable 1  
unfortunate person 1  
unfortunate 1   2   3   4   5   6  
unfortunately 1  
unfounded 1   2   3  
unfurl (to -) 1  
ungainly 1  
ungrateful 1  
unguarded 1  
unhappiness 1  
unhappy 1   2  
unharmed 1   2   3  
unhealthy 1   2  
unheard of 1  
unhinge (to -) 1  
unhook (to -) 1  
unhurt 1   2   3  
unicameral 1   2  
unification 1  
uniform 1   2   3  
unify (to -) 1  
unilateral 1  
uninflected 1  
uninformed 1  
uninhabitable 1   2  
uninhabited 1  
uninhibited 1  
uninjured 1  
unintentional 1  
uninterrupted 1   2  
uninterruptedly 1  
union 1   2   3   4  
unique 1   2  
uniqueness 1  
unit 1   2   3   4   5  
unitary 1  
unite (to -) 1   2   3   4   5  
United States 1  
united 1   2  
uniting 1  
unity 1   2  
univariate 1  
universal suffrage 1  
universal 1  
universe 1  
university degree 1  
university lecturing 1  
university student 1  
university teaching 1  
university 1   2   3  
univocal 1  
unjust 1  
unjustified 1  
unkempt beard 1  
unkempt 1  
unknown person 1  
unknown 1   2   3   4   5  
unlace (to -) 1  
unlawful 1   2  
unless 1   2  
unlike 1  
unlikely 1   2  
unlimited 1   2  
unlined 1  
unload (to -) 1   2  
unloaded 1  
unloader 1  
unloading 1   2  
unlucky 1   2   3   4  
unmarried mother 1  
unmarried woman 1  
unmarried 1   2  
unmask (to -) 1  
unmatched 1   2  
unmentionable 1  
unmerited 1  
unmistakable 1   2  
unnatural 1  
unnecessary 1   2   3  
unnoticed 1  
unobtrusively 1  
unofficial 1  
unpack (to -) 1   2  
unpaid bill 1  
unpaid 1  
unpardonable 1  
unperturbed 1  
unpick (to -) 1  
unpleasant 1   2   3   4   5  
unpopular 1   2  
unprepared 1  
unproductive 1  
unpropitious 1  
unpublished 1  
unquestionable 1   2  
unquestioned 1  
unravel (to -) 1  
unreachable 1  
unreadable 1  
unreal 1  
unrealistic 1  
unreasonable 1  
unrecognizable 1  
unrefined 1  
unregistered student 1  
unrelated 1  
unreliable 1   2  
unrepeatable 1  
unrest 1  
unrestrained 1   2   3  
unrewarding 1  
unripe 1   2  
unroll (to -) 1   2  
unruly 1   2  
unsafe 1   2  
unscrew (to -) 1  
unscrupulous 1   2  
unseasoned 1  
unseemly 1   2  
unselfishness 1   2  
unsettled weather 1  
unsettled 1  
unshakeable 1   2  
unshrinkable 1  
unsociable 1  
unsold stock 1  
unsolved 1  
unsound mind (of -) 1  
unspeakable 1   2  
unspecified 1  
unspoken 1  
unstable 1  
unstamped 1  
unsteady (to be -) 1  
unsteady 1   2  
unstick (to -) 1  
unstitch (to -) 1  
unsuccessful 1   2   3  
unsuitable 1  
unsuited 1  
unsullied 1  
unsurpassable 1  
unsuspected 1  
unsustainable 1  
untangle (to -) 1  
unthread (to -) 1  
untidiness 1  
untidy 1   2  
untie (to -) 1   2   3   4  
untie oneself (to -) 1  
untied (to -) 1  
untied 1  
until 1   2   3  
untimeliness 1  
untimely 1   2  
untiring 1   2   3  
untouchable 1  
unusual 1   2   3  
unveil (to -) 1   2  
unweaned baby 1  
unweaned 1  
unwelcome 1  
unwell 1   2   3  
unwilling 1  
unwillingly 1   2   3   4  
unwind (to -) 1   2  
unwise 1   2  
unworthy 1   2  
unwrap (to -) 1  
up-to-date 1   2  
up and down 1  
up here 1  
up there 1  
up till now 1  
up to (to be -) 1   2  
up to now 1  
up to 1  
up 1  
upbringing 1  
update (to -) 1  
updating 1  
upheaval 1  
uphill 1  
uphold (to -) 1  
upholsterer 1  
upholstery 1  
upkeep 1  
upland plain 1  
uplifting 1   2  
upon 1  
upper hand over (to have the -) 1  
upper bound 1   2  
upper part 1  
upper 1   2   3  
upright 1   2   3   4  
uprightness 1  
uprising 1  
uproar (to be in an -) 1  
uproar 1   2   3   4   5   6   7  
uproot (to -) 1  
upset (to -) 1   2   3   4   5   6   7   8  
upset (to become -) 1  
upset (to get -) 1   2  
upset 1   2   3  
upsetting 1  
upside down 1   2  
upstairs 1   2   3  
upstream 1  
urban conglomeration 1  
urban transport service 1  
urban 1  
urbane 1  
urethritis 1  
urge (to -) 1   2   3   4   5  
urgency 1  
urgent (to be -) 1  
urgent 1   2   3  
uricaemia 1  
urinal 1  
urinate (to -) 1  
urination 1  
urine 1  
urn 1  
us (to -) 1  
us 1  
usage 1  
use (in -) 1  
use (of no -) 1   2  
use (to -) 1   2   3   4   5   6  
use (to make -) 1   2   3  
use as (to -) 1  
use for (to -) 1  
use of (to make -) 1  
use to one's own ends (to -) 1  
use up (to -) 1  
use violence on (to -) 1  
use 1   2   3   4   5   6   7  
used (to be -) 1  
used to 1  
used 1  
useful (to be -) 1   2  
useful 1   2   3  
usefulness 1  
useless (to be -) 1  
useless 1   2  
uselessness 1  
user 1  
usher 1   2  
usual (more than -) 1  
usual procedure 1  
usual 1   2   3   4   5   6  
usually 1   2   3  
usufruct 1  
usurer 1  
usury 1  
utensil 1   2   3  
uterus 1  
utilitarian 1  
utility 1  
utilization 1  
utilize (to -) 1  
utmost 1  
utter (to -) 1