sonar

sonar, kaikuluotain puhekieltä echolocation
puhekieltä A device that uses hydrophones (in the same manner as radar) to locate objects underwater.
to sound, to make a sound
to ring, to buzz
English sonar
(is-inflection of)
to ring
puhekieltä (l) (gloss)
to sound, to ring
puhekieltä to ring a bell, to familiar be familiar

(ux)