■ adjective 'dju:plɪkət
1》 exactly like something else, especially through having been copied.
2》 having two corresponding parts.
■ noun 'dju:plɪkət one of two or more identical things.
■ verb 'dju:plɪkeɪt make or be an exact copy of.
↘multiply by two.
↘do again unnecessarily.
Derivatives
duplicable adjective
duplication noun
Origin
ME: from L. duplicat- , duplicare 'double', from duplic- (see duplex ).