fall in

US /fɔːl ɪn/
UK /fɔːl ɪn/
"fall in" picture
1.

to collapse inwards; to give way

:
•
The old bridge began to fall in after the heavy rain.
•
The roof of the abandoned house might fall in at any moment.
:
collapsecave ingive waysinksubside
2.

to take one's place in a line or formation

:
•
The soldiers were ordered to fall in for inspection.
•
Everyone, fall in quickly, we're running late!
:
line upform upassemblemuster
3.

to agree with or accept something

:
•
He was reluctant to fall in with their plans at first.
•
Eventually, everyone decided to fall in with the new policy.
:
agreecomplyconformassentaccede
:
fallfallingfall tofall in withfall intofall forfall on