Regist vs Insert - What's the difference?

As a noun insert is

a key that when pressed switches between the overtype mode and the insert mode of a computer.

Regist has no English definition. It may be misspelled.

(en verb)

To put in between or into.

In order to withdraw money from a cash machine you have to insert your debit card first.

To make your proof easier to comprehend I recommend you insert a few more steps.

* (put in between or into ): enter, introduce, put in, put inside

* delete

(en noun)

An image inserted into text.

A promotional leaflet inserted into a magazine, newspaper, etc.

This software can print compact disc inserts if you have the right size of paper.

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

* * * * * English heteronyms