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English definition of “mourn”

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mourn

verb [I/T]  /mɔrn, moʊrn/ us  
to feel or express deep sadness, esp. because of someone’s death: [T] Frank is mourning the death of his father.
mournful
adjective  /ˈmɔrn·fəl, ˈmoʊrn-/ us  
We heard the mournful cry of a wolf.
mournfully
adverb  /ˈmɔrn·fə·li, ˈmoʊrn-/ us  
He gazed mournfully out the window.
mourning
noun [U]  /ˈmɔr·nɪŋ, ˈmoʊr-/ us  
The family is in mourning.
(Definition of mourn from the Cambridge Academic Content Dictionary © Cambridge University Press)
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