head

[hed] ヘッド

1. The part of the body above the neck that contains the brain, eyes, ears, nose, and mouth.

This is the primary meaning, referring to the physical head of a person or animal.
She hit her head on the door. (彼女はドアに頭をぶつけた。)

2. The top or front part of something.

Used to describe the leading part of an object or a group, like the head of a line or a head of lettuce.
The head of the line was wearing a bright red hat. (列の先頭は明るい赤い帽子をかぶっていました。)

3. A person in charge of an organization or department.

Refers to a leader or manager, such as the head of a company or the head of a department.
She is the head of the marketing department. (彼女はマーケティング部門の責任者です。)

4. Intelligence or ability to think.

Implies someone's capacity for thought, reasoning, or understanding.
He has a good head on his shoulders. (彼は頭が良い(賢い)。)

5. A unit of livestock.

Used to count animals, such as '10 head of cattle'.
The rancher owns 500 head of cattle. (その牧場主は500頭の牛を所有しています。)

6. The striking surface of a tool or instrument.

Refers to the part of a hammer or drum that you hit with.
The hammer's head struck the nail with force. (ハンマーのヘッドは力強く釘を打ち付けた。)

7. The source of a river or stream.

The starting point or origin of a body of water.
The head of the river is a small spring. (その川の源流は小さな泉です。)

8. The foam on top of a glass of beer or other beverage.

The frothy layer that forms when pouring certain drinks.
The bartender poured the beer carefully to create a perfect head. (バーテンダーは完璧なヘッドを作るために注意深くビールを注いだ。)

9. A toilet.

Nautical slang for a toilet on a ship.
He went to the head. (彼はトイレに行った。)