Foot
A foot (plural: feet) is a body part on the end of a leg. It is used when walking, and is important for balance. It is also used to kick, in both fighting and sports like football.
A foot is a measure of length. It is called a "foot" because it is about as long as a large man's foot. It is sometimes called a US foot because it is only really used in the USA now.
- 1 foot = 12 inches = 304.8 millimeters
The abbreviation for "foot" is ' or ft. Other US units of measurement are also common.