Display panel > Hide rollout
The Hide rollout provides controls that let you hide and unhide individual objects by selecting them, regardless of their category.
Interface
Hide Selected: Hides the selected object(s).
Hide Unselected: Hides all visible objects except the selected ones. Use this to hide all objects except the one you're working on. Objects hidden by category arenÆt affected.
Hide By Name: Displays a dialog you use to hide objects you choose from a list. See Select Objects Dialog, which describes nearly identical controls.
Hide By Hit: Hides any object you click in the viewport. If you hold the CTRL key while selecting an object, that object and all of its children are hidden. To exit Hide by Hit mode, right-click, press ESC, or select a different function. This mode is automatically turned off if you hide all objects in the scene.
Unhide All: Unhides all hidden objects. The unhide buttons are available only when you have specifically hidden one or more objects. They won't unhide objects hidden by category.
Unhide By Name: Displays a dialog you use to unhide objects you choose from a list. See Select Objects Dialog, which describes nearly identical controls.
Hide Frozen Objects: Hides any frozen objects. Turn it off to display hidden frozen objects.