1. (informal) whirlwind or dust storm

Derived forms: willy-willies

• group O
• Group of Eight
• Group of Seven
• group participation
• group practice
• group psychotherapy
• group Pteridospermae
• group Pteridospermaphyta
• group theory
• group therapy
• grouped
• grouper
• groupie
• grouping
• groupthink
• Zoroastrianism
• zoster
• Zostera
• Zostera marina
• Zosteraceae
• Zouave
• zouk
• zounds
• Zovirax
• zoysia