1) Decline 2) Deny 3) Just say no 4) Nonacceptance 5) Refuse 6) Reject 7) Rejection 8) That is or may be turned down 9) The act of refusing an offer 10) Veto 1) Denial 2) Nay 3) Nonacceptance 4) Refusal 5) Veto 
• (a.) designating, or pertaining to, an incandescent lamp with a small additional filament which can be made incandescent when only a small amount of light is required. • (a.) Capable of being turned down; • (a.) Made to wear with the upper part turned down; as, a turndown collar.
Where a rider turns the handlebars and his body down toward the ground while the rest of the bike stays facing straight up.
that is or may be turned down; folded or doubled down: a turndown collar.