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to let in
[phrase form: let]
01
to let something or someone enter a place
Transitive: to let in sb/sth
Examples
I forgot my keys and had to wait for my roommate to let me in.
Please let in some fresh air, the room is stuffy.
02
to permit the passage of water, air, or light through a hole or opening in something
Transitive: to let in water, air, or light
Examples
The leaky roof let in the rain, causing water damage to the ceiling and walls.
The drafty windows let in the cold air, making the room uncomfortable on a chilly night.
