Crossword puzzle clue "echo tester's word"

Here are the possible solutions for echo tester's word clue

Answer
Clue
Relevancy
hello
Clue
Echo tester's word
Definition
to shout out a greeting, also HALLO, HALLOA, HALLOO, HILLO, HILLOA, HOLLA, HOLLO, HOLLOA, HOLLOO, HULLO
one
Clue
Microphone tester's word
Mike-tester's word
Definition
an individual thing or person; the number or figure 1
alkali
Clue
Litmus tester
Definition
(Arabic) a substance which, dissolved in water, forms a solution containing hydroxyl ions and with a pH of more than 7
assayer
Clue
Ore tester
Metal tester
Gold tester
Definition
one that assays
audiometer
Clue
Hearing tester
Definition
an instrument for measuring acuity of hearing

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