Synonyms to multiply by four

quadruplicate, Photostat, Xerox, biquadrate, biquadratic, clone, copy, counterpart, ditto, double, dupe, duplicate, duplication, facsimile, fourfold, hectograph, make four, manifold, microcopy, microfilm, mimeo, mimeograph, model, multigraph, quadrable, quadrigeminal, quadruple, quadruplex, reduplicate, repetition, replica, replicate, replication, representation, reproduce, reproduction, stat, tetraploid, trace, transcribe, triplicate