adjective

1. double
2. having two similar parts
3. corresponding exactly
4. designating a way of playing bridge in which, for comparative scoring, the same hands are played off again by players who did not hold them originally

Etymology: ME duplicaten < L duplicatus, pp. of duplicare, to double: see duplex

noun

1. an exact copy or reproduction; replica; facsimile
2. a counterpart or double
3. the game of duplicate bridge
4. ☆ tax duplicate

transitive verb duplicated -·cat′ed, duplicating -·cat′·ing

1. to make double or twofold
2. to make an exact copy or copies of
3. to make, do, or cause to happen again