Is hook a proper noun

No, the noun 'hook' is a common noun, a general Word for a curved or bent tool used for pulling or catching; a Word for something similarly curved or bent; something designed to catch people's attention; a Word for an action of the arm in boxing; a Word for a type of pitch in Baseball; a general Word for any hook of any kind.

Examples of the common noun 'hook' are:

• The fish swallowed the entire hook.
• I hung my purse on a wall hook.
• I bumped my shoulder on the hook in the dressing room.
• I broke the hook on the clothes hanger.

A proper noun is the name or title of a specific person, place or thing. A proper noun is always capitalized.

Examples of the proper noun 'Hook' are:

• Captain Hook hates Peter Pan.
• There was a scary incident at Sandy Hook Elementary School.
• My surgery was done Dr. Hook.
• I went fishing up at Bent Hook Lake.