- Foot (anatomy) : Structure anatomically located at the end of the leg and comprising bones and muscles that allow weight-bearing and locomotion.
- Foot (prosody) : Unit of metre, i.e. rhythm, that organises syllables or other units within the prosodic structure of many spoken languages, and can also underlie lines of verse (e.g. iambic pentameter being five pairs of unstressed-stressed syllables, or feet).
- Foot (unit) : A non-SI unit of length, equal to 0.3048 metre, and equivalent to 12 inches.