mourn
verb /mɔːn/
  /mɔːrn/
 [transitive, intransitive]Verb Forms
| present simple I / you / we / they mourn |    /mɔːn/   /mɔːrn/  | 
| he / she / it mourns |    /mɔːnz/   /mɔːrnz/  | 
| past simple mourned |    /mɔːnd/   /mɔːrnd/  | 
| past participle mourned |    /mɔːnd/   /mɔːrnd/  | 
| -ing form mourning |    /ˈmɔːnɪŋ/   /ˈmɔːrnɪŋ/  | 
- to feel and show that you are sad because somebody has died; to feel sad because something no longer exists or is no longer the same synonym grieve
- Please, leave us to mourn in peace.
 - mourn something He was still mourning his brother's death.
 - They mourn the passing of a simpler way of life.
 - The city was mourning the victims of the bombings.
 - mourn (for somebody/something) Today we mourn for all those who died in two world wars.
 - She mourned for her lost childhood.
 
Oxford Collocations DictionaryMourn is used with these nouns as the object:- death
 - loss
 - passing
 - …
 
Word OriginOld English murnan, of Germanic origin. 
Wordfinder
- ashes
 - cemetery
 - coffin
 - cremation
 - die
 - funeral
 - grave
 - hearse
 - morgue
 - mourn