Definitions:

1. A person who expresses sorrow, grief, or regret through loud, unrestrained crying or lamenting, typically associated with mourning the deceased. NOUN
   • In the distance, a lone wailer could be heard lamenting the loss with an aching voice.
2. Refers to a person expressing grief or pain through loud cries, or it can describe a sound that resembles wailing, such as a siren or alarm. NOUN
   • The siren was a relentless wailer, piercing the quiet streets.
3. Someone or something that produces a prolonged, mournful cry or wailing sound. NOUN
   • The wailers gathered to mourn their loved ones, their cries echoing in the night.

Synonyms:

• griever
• lamenter
• mourner
• sorrowere
• weeper