guide dog
US /ˈɡaɪd dɔːɡ/
UK /ˈɡaɪd dɔːɡ/

1.
a dog trained to lead blind or visually impaired people
:
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The blind man relied on his guide dog to navigate the busy street.
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Training a guide dog requires patience and specialized skills.
a dog trained to lead blind or visually impaired people