gash

(noun) a wound made by cutting. Synonyms: cut, slash, slice. Example: "He put a bandage over the cut."

(noun) a trench resembling a furrow that was made by erosion or excavation. Synonyms: cut.

(noun) a strong sweeping cut made with a sharp instrument. Synonyms: slash.

(verb) cut open. Synonyms: slash. Example: "She slashed her wrists."