Pronunciation: /lɛt ɪn ɒn/
verb to allow someone to have knowledge of or access to something
A1 Can you let me in on the secret recipe for your delicious cookies?
A2 I was finally let in on the plan for the surprise party.
B1 She decided to let her best friend in on her new business idea.
B2 The manager let the team in on the company's upcoming merger.
C1 The professor let the students in on the groundbreaking research findings.
C2 The government official was let in on classified information regarding national security.
preposition used to indicate the action of allowing someone to have knowledge of or access to something
A1 I will let you in on a secret.
A2 Can you let me in on what happened at the meeting?
B1 She finally let me in on her plans for the future.
B2 The manager let us in on the new project they are working on.
C1 The professor let the students in on the research findings before publishing them.
C2 The CEO let the board of directors in on the company's upcoming merger.
formal I was let in on the details of the new project during the meeting.
informal Can you let me in on the plan for tonight?
slang Hey, can you let me in on what's going on with them?
figurative She finally let me in on her feelings about the situation.
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