chalk noun
1 white rock
VERB + CHALK quarry
CHALK + NOUN cliff, downs, hill | pit, quarry
2 small stick of chalk
ADJ. coloured a box of coloured chalks
QUANT. piece, stick
CHALK + NOUN drawing | dust
PREP. in ~ She had scrawled a note in chalk across the blackboard. | with ~ to write with chalk
You can also check other dicts: chalk (English, 中文解释 ), wordnet sense, Collins Definition