An exclamation of surprise, admiration, or realization. Often drawn out as ほー or ホー in casual writing.
Oh, that's amazing!
Oh, I see.
hoo (owl call); toot (flute sound)
Onomatopoeic representation of an owl's hoot or the sound of a flute. Used in narrative or sound-effect contexts.
From deep in the forest, I heard the 'hoo' of an owl.
The flute sounded with a 'toot'.
Katakana spelling, common in manga or when representing the sound effect.
Variant with long vowel mark, often used in manga or casual writing to emphasize the drawn-out sound.
The interjection is a natural exclamation, likely of native origin. The mimetic use is sound-symbolic, imitating the call of an owl or the sound of a flute.