1. To cry as a cat.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• whail,
• woll,
• wa7l,
• weaul,
• 3waul,
• w3aul,
• w2aul,
• wwaul,
• wayul,
• wauyl,
• wahul,
• wa8ul,
• wau8l,
• wa7ul,
• wau7l,
• wauol,
• waulo,
• wauul,
• waull,
• wa5l

• wale,
• wallow,
• wahl,
• wally,
• wail,
• wallah,
• Walla,
• walleye,
• wawl,
• walley,
• wall,
• waylay.

The adverb form of "waul" is "waulingly".

The plural form of the word "waul" is "wauls"

The singular form of the word "waul" is "waul". "Waul" is already in the singular form, meaning to make a wailing or yowling sound, typically used to describe the sound made by a cat.