cwm /koom/

1. The Welsh name for a valley or glen
2. A cirque or corrie (geology)

• blue ribbons
• blue rinse
• blue-rinse
• blue-rinsed
• blue rinsers
• blue rinses
• blue rocket
• blue-rot
• blue-rots
• blue ruin
• blue ruins
• blues
• blue screen
• blue-screen
• blue screens
• blue shark
• blue sharks
• blue sheep
• bluesier
• bluesiest
• blue-skies
• blue-sky
• blue-sky laws
• blue-sky thinking
• bluesman