rictus

noun 0.611

zygomaticus

noun 0.608

zygomaticus major

noun 0.595

risibility

noun 0.570

levator anguli oris

noun 0.563

grin

noun 0.553

levator labii superioris

noun 0.551

smile

noun 0.546

smiling

noun 0.537

grimace

noun 0.528

grinning

noun 0.524

orbicularis oculi

noun 0.518

moue

noun 0.518

masseter

noun 0.518

riser

noun 0.517

procerus

noun 0.514

nasalis

noun 0.514

orbicularis

noun 0.511

corrugator supercilii

noun 0.509

temporal muscle

noun 0.507

simper

noun 0.507

laugh line

noun 0.505

underlip

noun 0.505

auricularis

noun 0.503