coom¹ /koom/

1. Soot
2. Coal dust
3. Dust or grime of various kinds

To begrime

• open learning
• open letter
• open letters
• openly
• open market
• open markets
• open marriage
• open marriages
• open-mic
• open-mike
• open mind
• open-minded
• open-mindedly
• open-mindedness
• open minds
• open-mouthed
• openness
• opennesses
• open note
• open notes
• open order
• open orders
• open out
• open-plan
• open-plan house