Cuba

curate

dual

duco

duel

duplex

emu

futile

hubris

human

humour (US humor)

Judah

mulish

music

puma

putrid

Stuart

student

stupid

stupor

tuba

tubing

Tudor

tulip

tumour (US tumor)

tumult

tuna

tunic

tutor

unit

accumulate

acumen

amulet

annual

arduous

argument

Bermuda

bravura

calculate

communicate

computer

curator

educate

evaluate

fabulous

immaculate

incubate

Inuit

jaguar

manual

Medusa

nuclear

peculiar

popular

prosecutor

puerile

sensuous

simulate

studio

truculent

Ulysses

unicorn

union

university

virtuous