plural of double dare

Third-person singular simple present indicative form of double dare

(tennis) To commit a double fault.

plural of double planet

Alternative form of double action

Alternative spelling of double action

The name of the Latin-script letter ẞ.

(firearms, primarily of revolvers) Requiring only a trigger pull to both cock and fire.

(firearms) A trigger mechanism requiring a single pull to both cock and fire.

(slang, sexology) A dildo whose two ends are both designed for penetration.