What is the meaning of Insert?

To put in between or into.

An image inserted into text.

A promotional or instructive leaflet inserted into a magazine, newspaper, tape or disk package, etc.

A mechanical component inserted into another.

An expression, such as "please" or an interjection, that may occur at various points in an utterance.

A sequence of DNA inserted into another DNA molecule.

A pre-recorded segment included as part of a live broadcast.

A close-up shot used to draw attention to a particular element of a larger scene.

A diaper insert.

A plug-in that adds an effect to an audio track.

A key to toggle between text insert mode and overwrite mode

to tuck in; to push (the fabric at the bottom of a shirt) under the pants

having one's clothes tucked in

insert

insert, insertion

Source: wiktionary.org