How to add custom suggestions in VS Code?

Question

How do I add this so that when I type a word "key" into VS Code it changes it to "keyhole" (dumb example I know)?

I tried looking at the settings but got no further.

Answer 1

If you have complex text segments with fields, you can use fragments.

If you just want to replace text, check out

Complete from file

Answer 2

In the simple case shown above, you can write a custom code snippet. (See Snippets in Command Palette: Configuring User Snippets Commands) For example.

{
    "key": {
        "prefix": "key",
        "body": "key hole",
        // "scope": "java" // uncomment to make it only apply for Java files
    }
}

I think that aside from writing or using an extension that helps achieve this, the suggestion (outside of snippets) could be to use plain (no extension) VS Code for configuration.