SONAR Scrabble 5 Words With Friends 6 Definition noun a measuring instrument that sends out an acoustic pulse in water and measures distances in terms of the time for the echo of the pulse to return. — synonyms: echo_sounder, asdic Anagrams of SONAR arsonroans See all 29 words you can make from SONAR → 5-letter words Words starting with S Words ending with R ← Unscramble different letters