ultrasound

verb 0.566

heliograph

verb 0.539

radar

verb 0.536

chirp

verb 0.528

vocalize

verb 0.524

telescope

verb 0.520

helicopter

verb 0.518

whale

verb 0.513

hear voices

verb 0.510

auscultate

verb 0.509

flashlight

verb 0.508

periscope

verb 0.507

eagle

verb 0.507

hawk

verb 0.507

sonicate

verb 0.506

bat

verb 0.505

holograph

verb 0.505

searchlight

verb 0.504

phonate

verb 0.503

laser

verb 0.502

reecho

verb 0.501