delete_term_relationships
Action Hook: Fires immediately before an object-term relationship is deleted.
Source: wp-includes/taxonomy.php:3019
delete_term_taxonomy
Action Hook: Fires immediately before a term taxonomy ID is deleted.
Source: wp-includes/taxonomy.php:2156
delete_theme
Action Hook: Fires immediately before a theme deletion attempt.
Source: wp-admin/includes/theme.php:82
delete_transient_{$transient}
Action Hook: Fires immediately before a specific transient is deleted.
Source: wp-includes/option.php:837
delete_user
Action Hook: Fires immediately before a user is deleted from the database.
Source: wp-admin/includes/user.php:398
delete_user_form
Action Hook: Fires at the end of the delete users form prior to the confirm button.
Source: wp-admin/users.php:394
delete_widget
Action Hook: Fires immediately after a widget has been marked for deletion.
Source: wp-admin/widgets-form.php:170
deleted_{$meta_type}_meta
Action Hook: Fires immediately after deleting metadata of a specific type.
Source: wp-includes/meta.php:528
deleted_{$meta_type}meta
Action Hook: Fires immediately after deleting post or comment metadata of a specific type.
Source: wp-includes/meta.php:1086
deleted_blog
Action Hook (deprecated): Fires after the site is deleted from the network.
Source: wp-includes/ms-site.php:292