pullulate /pulˈū-lāt/

1. To sprout
2. To sprout or breed abundantly
3. To teem
4. To increase rapidly

pullulāˈtion noun

• willow tits
• willow warbler
• willow warblers
• willow weed
• willow wren
• willowy
• willpower
• willpowers
• wills
• wills-o'-the-wisp
• will-worship
• willy
• willyard
• willyart
• willying
• willy-nilly
• willy-willies
• willy-willy
• Wilms' tumour
• Wilson's disease
• wilt
• wilted
• wilting
• wiltja
• wiltjas