you can't judge a book by its cover
It is not possible to make reliable judgments about things or people by considering external appearances alone.
ADJ
loose
The mattress had a loose cover that kept slipping off during the night.
protective | removable
dust
The old piano had a thick dust cover to keep it clean during the renovation.
cushion, duvet, mattress, seat | manhole
VERB + COVER
put on | take off
PREP
~ for
The blanket serves as a cover for the bed during cold winter nights.
ADJ
thick
The old blanket provided a thick cover over the worn sofa in the living room.
cloud, snow
The mountain peaks disappeared completely beneath a blanket of snow cover during the night.
forest, ground
The thick forest cover protected the hikers from the heavy rain during their trek.
ADJ
back, front | hard, soft | book, magazine
COVER + NOUN
design | story | girl
PREP
on a/the ~
The magazine's front cover featured a famous actor smiling at the camera.
ADJ
bed
VERB + COVER
get under | pull up
pull back, throw back
He pulled back the cover to check if the cake had finished baking.
PREP
under the ~
ADJ
comprehensive, full
wide
My travel insurance offers wide cover for medical emergencies and lost baggage.
standard | additional | insurance | fire, health, indemnity, life, medical
VERB + COVER
have | give sb, provide (sb with)
PREP
~ against
You should buy insurance to cover against theft if you own an expensive bicycle.
~ for
When the manager got sick, I had to cover for her at the meeting.
ADJ
air
Fighter jets offered air cover while the ground troops advanced through the valley.
VERB + COVER
dive for, run for, take
The children took cover under the bridge when the thunderstorm suddenly arrived.
seek | find | give sb, provide (sb with) | break
PREP
under ~
The construction equipment stays under cover during the winter months to prevent damage.
under ~ of
The rebels escaped under cover of the heavy rainstorm that night.
~ from
The hikers huddled under the trees to get cover from the heavy rain.