6 invocations of hook_entity_delete() in Drupal 7

comment_delete_multiple in modules/comment/comment.module

Delete comments and all their replies.

file_delete in includes/file.inc

Deletes a file and its database record.

node_delete_multiple in modules/node/node.module

Deletes multiple nodes.

taxonomy_term_delete in modules/taxonomy/taxonomy.module

Delete a term.

taxonomy_vocabulary_delete in modules/taxonomy/taxonomy.module

Deletes a vocabulary.

user_delete_multiple in modules/user/user.module

Delete multiple user accounts.