[countable] the part of the body on top of the neck containing the eyes, nose, mouth and brain. She nodded her head in agreement. He shook his head in ...

1[countable] the part of the body on top of the neck containing the eyes, nose, mouth, and brain She nodded her head in agreement. He shook his head in ...

+ adv./prep. to move in a particular direction. Where are we heading? Where are you two headed? Let's head back home. She headed for the door.

2[transitive] head something (also head somethingup) to lead or be in charge of something She has been appointed to head the research team.

What does the noun head mean? There is one meaning in OED's entry for the noun head. See 'Meaning & use' for definition, usage, and quotation evidence.

a person who is very enthusiastic about a particular thing or is addicted to a particular drug; a gearhead (= a person who is very enthusiastic about cars)

​in which two people or groups face each other directly in order to decide the result of a competition or an argument. a head-to-head battle/clash/contest.

head-on adjective /ˌhed ˈɒn/ /ˌhed ˈɑːn/ [only before noun] in which the front part of one vehicle hits the front part of another vehicle.

the part of the body above the neck where the eyes, nose, mouth, ears, and brain are. Put this hat on to keep your head warm. GIVE HEAD · HEAD OFF · COME TO A HEAD · Head for something

The earliest known use of the noun Head is in the 1890s. OED's earliest evidence for Head is from 1893, in a paper by W. Thorburn. From a proper name.