accessary /ak'sesan; aek'seson/ n (pl -ries), pred adj (= US 美 accessory ⑴) (legal) person who helps in any act, esp a crime: (法律) 幫手; (尤指) 從犯; 幫兇的; 從犯的： an ~ to a crime; 一件犯罪案的從犯; He was made ~ to the crime. 他被人利用，成為這件犯罪案的從犯。 ~ before/after the fact, → fact (1).