Bible Dictionary

Didymus

The name Didymus means “a twin; double”.

Easton's Bible Dictionary 1897

(Gr. twin = Heb. Thomas, q.v.), John 11:16; 20:24; 21:2.

Smith's Bible Dictionary 1863

(the twin), a surname of the apostle Thomas. (John 11:16; 20:24; 21:2) [Thomas]

International Standard Bible Encyclopedia 1915

did'-i-mus (Didumos, i.e. "twin"): The surname of THOMAS (which see).