umbrella with rain drops
unamused face
unbalanced working
uncle
underground railway
unicolour
unicoloured
unicorn face
unlabelled
unofficial contract labour
unofficial contract labourer
unravelling
unskilful
unskilfully
up
up arrow
up button
up! button
up-down arrow
up-left arrow
up line
up-right arrow
upside-down face
up train
urbanisation
utilisation of pesticides
valorisation
valour
van
vapour
vapour pressure
varicoloured
vertical traffic light
very
vest
vestibule coach
vestibule third brake
vibration mode
vice
victory hand
video camera
videocassette
video game
vigour
violin
virgo
virtualisation
visualise
Vitalstatistix
volcano
British English