someone who tunes pianos
"The professional tuner arrived early in the morning to adjust the strings of the grand piano before the concert."
an electronic receiver that detects and demodulates and amplifies transmitted signals
"The tuner in his car radio picks up faint signals from distant stations, cleans them up, and makes the music clear."
A person who tunes a piano or organ.
"He adjusted the strings to tune his guitar before starting the song."
A musical.
In plain English: A tuner is an electronic device that helps you find and adjust radio stations to get clear sound without static.
"He adjusted the tuner to fix the off-key sound on his guitar."
Tuner is a straightforward compound word formed by adding the suffix "-er" to the verb tune. It refers to someone or something that performs the action of tuning an instrument or device.