wailer

nouns

a mourner who utters long loud high-pitched cries
wailer
is derived from
wail
is a type of (narrower)
a person who is feeling grief (as grieving over someone who has died)
griever, lamenter, mourner, sorrower
is a type of (narrower)
someone who expresses in language; someone who talks (especially someone who delivers a public speech or someone especially garrulous)
"the speaker at commencement"; "an utterer of useful maxims"
speaker, talker, utterer, verbaliser, verbalizer