J
jeopardize
judicious
juggle
juncture
juvenile
K
kick up a fuss
knack
N
negate
negligible
neural
niche
nod off (in a meeting
nonchalant
novice
Q
quadruple
qualified
quandary
quarantine
quell
quorum
quota
U
ultimatum
uncouth
uncover
undergo
undermine
undertake
unravel
unscathed
upgrade
upheaval
uphold
V
valiant
variant
【名】
異なるもの、変形、異形、変異形、変異株、変異体、変化
《機械》改良型
vandalism
vehement (desire
vent
venue
verdict
verify
veto
viability
vibrant
vie for
vindicate
volatile
vouch for