You can use  Automatic Nodetitles

Module to hide the title field of the module.

If you want to hide for the particular node or content type, then you should use the Hook_form_alter

You can use the Automatic Nodetitles module.

"auto_nodetitle" is a small and efficient module that allows hiding of the content title field in the form. To prevent empty content title fields one can configure it to generate the title by a given pattern.

If you want to hide the title for the particular node or content type, then you should use hook_form_alter().