Pronunciation

/chɔːk/

Definitions

Noun

• A type of sedimentary rock: A soft, white or yellowish sedimentary mineral composed of calcium carbonate, often used for writing or drawing on blackboards. Example: “The teacher wrote her notes in chalk on the board.”
• Writing material: A stick or tablet made from chalk, used for making marks on surfaces. Example: “The children were drawing with pieces of chalk on the pavement.”

Verb

• To mark or draw with chalk: The action of using chalk to write or draw. Example: “She chalked out the game plan on the blackboard.”
• To erase with chalk: To remove markings by rubbing them out with chalk. Example: “After the lesson, they wiped the chalk off the board.”

Phrases

• “Chalkboard”: A board specifically designed for writing with chalk.
• “Use chalk to write”: The act of marking something with chalk.
• “Chalk talk”: A discussion or presentation using chalk to illustrate points.

Example Sentences

• Noun: “The old schoolhouse still had a blackboard with fresh chalk dust.”
• Verb: “The teacher erased the chalk markings from the wall before starting the new lesson.”
• Chalk talk: “The coach gave a chalk talk to the team before the big game.”

Synonyms

• Talc
• Slate
• Marker (informal)
• Whiteboard marker (for non-chalk alternatives)