| Word | Definitions | Synonyms |
|---|---|---|
| ft | (noun) a linear unit of length equal to 12 inches or a third of a yard | Synonyms: foot |
| fthm | (noun) a linear unit of measurement (equal to 6 feet) for water depth | Synonyms: fathom |
| (noun) (mining) a unit of volume (equal to 6 cubic feet) used in measuring bodies of ore | Synonyms: fathom |