WordPress File wp-includes/taxonomy.php

create_term

Fires immediately after a new term is created, before the term cache is cleaned.

created_{$taxonomy}

Fires after a new term in a specific taxonomy is created, and after the term cache has been cleaned.

created_term

Fires after a new term is created, and after the term cache has been cleaned.

delete_term

Fires after a term is deleted from the database and the cache is cleaned.

edit_{$taxonomy}

Fires after a term in a specific taxonomy has been updated, but before the term cache has been cleaned.