Meaning of the word "hearing dog" in English

What does "hearing dog" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

hearing dog

US /ˈhɪrɪŋ dɔɡ/
UK /ˈhɪrɪŋ dɔɡ/
"hearing dog" picture

Noun

1.

a dog trained to alert a deaf or hard-of-hearing person to sounds, such as a doorbell, telephone, or smoke alarm

Example:
My friend relies on her hearing dog to let her know when someone is at the door.
Training a hearing dog requires patience and specialized techniques.
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