Meaning of the word "the day has eyes, the night has ears" in English

What does "the day has eyes, the night has ears" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

the day has eyes, the night has ears

US /ðə deɪ hæz aɪz, ðə naɪt hæz ɪrz/
UK /ðə deɪ hæz aɪz, ðə naɪt hæz ɪəz/
"the day has eyes, the night has ears" picture

Idiom

a warning that one should be careful about what they say or do, as someone might be watching or listening at any time

Example:
Be careful what you say in this house; the day has eyes, the night has ears.
Don't discuss the secret here; remember that the day has eyes, the night has ears.