1. to have care, concern, or regard (often followed by of, with, or a clause).
2. to take heed.
3. Archaic. to be of concern or importance; matter: It recks not.
4. Archaic. to have regard for; mind; heed.
5. to mind or care about (something): to reck nought
6. (usually impersonal) to concern or interest (someone)