oh
UK: əʊ | US: oʊ
Definition
interj. an exclamation expressing surprise, pain, joy, or other emotions
interj. used to acknowledge a statement or to introduce a response
Structure
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Etymology
"Oh" is a natural exclamation with roots in Old English ("ō") and Proto-Germanic ("*ō"), likely originating as an instinctive vocalization to express emotion. Its simplicity and universality have preserved it across languages (e.g., Latin "ō," Greek "ὦ"). Unlike compound words, "oh" evolved purely as a vocal reflex, making it resistant to morphemic division.
Examples
"Oh! I didn’t see you there."
"Oh, that’s wonderful news!"
"Oh no, I forgot my keys."
"Oh, I see what you mean now."
"Oh… that hurts."