risorius

noun 0.611

grimace

noun 0.595

grin

noun 0.583

grinning

noun 0.565

fissure

noun 0.535

rille

noun 0.532

retch

noun 0.531

jaws

noun 0.526

risibility

noun 0.526

reticulum

noun 0.519

rip

noun 0.519

retic

noun 0.515

rickets

noun 0.514

wry

noun 0.514

gaping

noun 0.513

ruction

noun 0.511

ratchet

noun 0.509

wrinkle

noun 0.509

open jaw

noun 0.508

recto

noun 0.506

smile

noun 0.506

reek

noun 0.504

wryness

noun 0.504

pucker

noun 0.503

rectus muscle

noun 0.502

reticule

noun 0.502