English Theasurus that shows all the ways the English word is translated from the original Greek and Hebrew.
English Theasurus from the Hebrew and Greek Strong's Dictionary
twain 1417 ** duo ** both, {twain}, two.
twain 8147 -- sh@nayim -- both, couple, double, second, {twain}, + twelfth, + twelve, +twenty (sixscore) thousand, twice, two.