Here you will learn 13 phrasal verbs with Let. Things we will go through include: let somebody down meaning, let up meaning, let in on meaning, etc… I will give you plenty of examples and you will be able to understand the meaning in context. Let’s get started!

13 Phrasal Verbs with Let
LET SOMETHING DOWN
meaning: to make clothes longer
Example: I need to let down this dress, it’s too short.
LET SOMEONE DOWN
meaning: to disappoint someone
Example: He really let me down by lying to me.
LET ON
meaning: to reveal a secret, usually without any intention of doing so
Example: That was John who let on that she had stolen the money.
LET sOMEONE OFF
meaning: to forgive someone, not to punish
Example: The police officer let him off without arresting him.
LET OFF
meaning: to cause a bomb or a similar device to explode
Example: On Tuesday evening police said they did not yet have any idea who had let off the bomb.
LET UP
meaning: to become less strong
Example: The boat won’t sail until the strong winds let up.
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Phrasal Verbs with Let - Infographic

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LET SOMETHING INTO SOMETHING
meaning: to put something such as window or decoration into a flat surface (wall, roof, floor, etc) so it doesn’t stick out
Example: A box, about ten inches deep, was let into the floor of the cupboard.
LET OUT
meaning: to end
Example: School will let out at 12:30 PM this Friday because of the final exams next week.
LET SOMETHING OUT
meaning: to make clothes larger
Example: I’ve gained a few pounds over Christmas, so I have to have my skirt let out.
LET SOMEONE OUT
meaning: to release someone
Example: After 10 years, Peter’s uncle was finally let out of prison.
LET IN ON
meaning: to allow someone to know about something
Example: He wouldn’t let me in on his plans.
LET IN(TO)
meaning: to allow someone or something to enter a place
Example: Let the light in with a tall sliding glass door.
Jack knocked on the door, and I let him in.
LET YOURSELF IN FOR SOMETHING
meaning: to get yourself involved in an unpleasant situation, usually unintentionally
Eaxmple: I don’t know why Jim lets himself in such an isolated lifestyle.
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More Information
For more information on English phrasal verbs, English grammar rules and English idiomatic expressions, click on the following links:
Don’t forget to check out BBC Learning English and LearnEnglish British Council.