Fell is a versatile English word with multiple meanings:
1. Verb: past tense of "fall" - to drop or descend suddenly
2. Noun: a highland or moor, especially in northern England
3. Adjective: fierce, cruel, or deadly
4. Verb: to cut down (a tree)
5. Noun: an animal's hide or skin with the hair
6. In sewing: the edge of a fabric folded and sewn