Compulsory vocabulary for week 10

margin of error
scruffy
spotless
diffident
bonanza  
mien
render
summon
arson
tranquility
outstay/overstay your welcome
rally
stand trial
go through the motions
grim
thick and fast
take effect
obscene
cramp sb's style
pretext
speaks for itself
upkeep
stop short of sth/doing sth
whereby
learn/know the ropes
phenomenal
turn your nose up at sth
in the red
dabble
a plethora of sth
kudos  
entail
pace yourself
subject to sth
on the face of it