[ noun, adjective sep-too-pli-kit, -tyoo-; verb sep-too-pli-keyt, -tyoo- ]
/ noun, adjective sɛpˈtu plɪ kɪt, -ˈtyu-; verb sɛpˈtu plɪˌkeɪt, -ˈtyu- /


a group, series, or set of seven identical copies (usually preceded by in).


having or consisting of seven identical parts; sevenfold.
noting the seventh copy or item.

verb (used with object), sep·tu·pli·cat·ed, sep·tu·pli·cat·ing.

to make seven copies of.
to make seven times as great, as by multiplying.

Origin of septuplicate

< Medieval Latin septuplicātus (past participle of septuplicāre to multiply by seven), equivalent to Late Latin septu(plus) septuple + -plicātus, as in quadruplicātus; see quadruplicate Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for septuplicate

/ (sɛpˈtjuːplɪkət) /


a group or set of seven things


having or being in seven parts; sevenfold
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012