reduplication

noun 0.799

duplicator

noun 0.744

duplication

noun 0.675

duplicate

noun 0.659

replicant

noun 0.617

redouble

noun 0.612

replicator

noun 0.610

doubler

noun 0.567

duplicity

noun 0.563

dupe

noun 0.561

duper

noun 0.559

replicate

noun 0.556

quadruplicate

noun 0.555

replicase

noun 0.547

replicon

noun 0.543

repeater

noun 0.537

reproducer

noun 0.530

doubling

noun 0.529

endoreduplication

noun 0.529

redound

noun 0.526

reiterative

noun 0.525

replica

noun 0.524

quintuplicate

noun 0.522

clone

noun 0.521

doppelganger

noun 0.521

repeating

noun 0.520

doubleness

noun 0.517

redintegration

noun 0.516

revertant

noun 0.515

triplicate

noun 0.515

replication

noun 0.513

copycat

noun 0.511

recidivist

noun 0.509

duplex

noun 0.507

redundancy

noun 0.506

repro

noun 0.505

reiteration

noun 0.505

parroting

noun 0.505

repetitiousness

noun 0.504

double-count

noun 0.502

reprint

noun 0.502

imitator

noun 0.500