Found 3 Strong's definitions.

1. 1

   G1324: Δίδυμος (Dídymos)

   prolongation from δίς; double, i.e. twin; Didymus, a Christian:--Didymus.

   100%
2. 2

   G1364: δίς (dís)

   adverb from δύο; twice:--again, twice.

   1%
3. 3

   G2381: Θωμᾶς (Thōmâs)

   of Chaldee origin (compare תָּאוֹם); the twin; Thomas, a Christian:--Thomas.

   1%