Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb mourn

2 senses of mourn

Sense 1
mourn -- (feel sadness; "She is mourning her dead child")
       => grieve, sorrow -- (feel grief)

Sense 2
mourn -- (observe the customs of mourning after the death of a loved one)
       => observe, celebrate, keep -- (behave as expected during of holidays or rites; "Keep the commandments"; "celebrate Christmas"; "Observe Yom Kippur")