how

(noun, adverb, interjection, conjunction)

adverb

1. To what degree.

- How often do you practice?

2. In what manner.

- How do you solve this puzzle?

3. Used as a modifier to indicate surprise, delight, or other strong feelings.

- How very interesting!

4. In what state.

- How are you?

- How was your vacation?

conjunction

1. In which way; in such way.

- I remember how to solve this puzzle.

2. That, the fact that, the way that.

interjection

1. A greeting, used in representations of Native American speech.

noun

1. The means by which something is accomplished.

- I am not interested in the why, but in the how.

2. (dialectal) An artificial barrow or tumulus.

3. (dialectal) A small hill in northern England. (Usage preserved mainly in place names.)