What is the meaning of wailing?

noun

• Loud cries made while weeping.
  • synonyms: bawling

verb

• Emit long loud cries.
  • usage: "wail in self-pity"; "howl with sorrow"
  • synonyms: howl, ululate, wail, roar, yawl, yaup
• Cry weakly or softly.
  • usage: "she wailed with pain"
  • synonyms: wail, whimper, mewl, pule

adjective

• Vocally expressing grief or sorrow or resembling such expression."lamenting sinners"; "wailing mourners"; "the wailing wind"; "wailful bagpipes"; "tangle her desires with wailful sonnets- Shakespeare
  • synonyms: lamenting, wailful