cauk or cawk /kök/

1. Chalk (dialect)
2. Barytes in platy crystals

• top hat
• top hats
• top-heavily
• top-heaviness
• top-heavy
• Tophet
• tophi
• top-hole
• tophus
• topi
• topiarian
• topiaries
• topiarist
• topiarists
• topiary
• topic
• topical
• topicalities
• topicality
• topically
• topics
• topic sentence
• topic sentences
• to pieces
• to-pinch