IPA: /ædˈdʒʌŋkʃən/
KK: /ædˈʒʌŋkʃən/
The act of adding or attaching something, often used in mathematics to describe a relationship between two functors.
In category theory, adjunction is a key concept that helps to understand the relationship between different mathematical structures.
Adjunction → It is formed from "ad-" (meaning to or towards) and "junctio" (from "jungere", meaning to join). The word "adjunction" refers to the act of joining something to another thing or the state of being joined.
Think of 'joining' ('jungere') something 'to' ('ad-') another — that's why adjunction means to add or join something.