noun

• (historical) A long, narrow hollow dug from the ground to serve as a boundary marker.
• (dialect) Any navigable watercourse.
• (dialect) Any watercourse.
• (dialect) Any small body of water.

verb

• (transitive or intransitive) To dig, particularly to create a ditch.
  "He finds out, soon enough for his weal and his bane, that he is stronger than Nature: and right tyrannously and irreverently he lords it over her, clearing, delving, dyking, building, without fear or shame."
• (transitive) To surround with a ditch, to entrench.
• (transitive, Scotland) To surround with a low dirt or stone wall.
• (transitive or intransitive) To raise a protective earthwork against a sea or river.

noun

• (slang, usually derogatory, offensive) A lesbian, particularly one with masculine or butch traits or behavior.
• (slang, usually derogatory, loosely, offensive) A non-heterosexual woman.