りゃくryakusu
1.

To remove non-essential parts of something in order to focus on the more important elements or to simplify the content.

2.

To condense a lengthy or complex title or term into a shorter and more manageable form for ease of use or understanding.

3.

To make a detailed account or explanation more straightforward by omitting certain details or simplifying the language used.

Example:

私の名前はロバートなので、皆は略してボブと呼びます。