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slip in

B1 neutral separable both
In simple words

To go somewhere quietly without anyone noticing, or to add something small into something else

Literal meaning: To slide into a space

Meanings

1 B1 neutral

To enter a place quietly or without being noticed

"She slipped in through the back door before the meeting started."

Grammar: inseparable
2 B1 idiomatic neutral

To add a comment, question, or piece of information briefly and unobtrusively

"He managed to slip in a question about the salary before the interview ended."

Grammar: separable
3 B1 informal

To arrive at an event or location late or unobtrusively, often hoping no one notices

"The student slipped in at the back of the lecture hall twenty minutes late."

Grammar: inseparable
Usage notes

When used transitively (slip something in), it often refers to adding a remark or piece of information unobtrusively. Common in both British and American English.

Commonly used with

comment remark question word joke reference

Forms

Base
slip in
I/you/we/they
3rd person
slips in
he/she/it
Past simple
sliped in
yesterday
Past participle
sliped in
have + pp
-ing form
sliping in
continuous

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Synonyms

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