What is the meaning of Hero?

Somebody who possesses great bravery and carries out extraordinary or noble deeds.

A role model.

The protagonist in a work of fiction.

The current player, especially a hypothetical player for example and didactic purposes. Compare: villain (any opponent player). Not to be confused with hero call (a weak call against a supposed bluff).

A large sandwich made from meats and cheeses; a hero sandwich.

The product chosen from several candidates to be photographed, as in food advertising, or with props used in a movie.

The eye-catching top portion of a web page, sometimes including a hero image; the portion above the fold.

To act as a hero (brave person; role model; or protagonist).

To praise or laud.

To bring attention to; to highlight; to spotlight.

The American Heritage Dictionary of the English Language, Fourth Edition (2000)

Webster's New World College Dictionary, Fourth Edition (1999)

1 2 hero”, in Dictionary.com Unabridged, Dictionary.com, LLC, 1995–present.

Alternative form of her

to love

Alternative form of here (their)

Source: wiktionary.org