I. chalk¹ /tʃɔːk $ tʃɒːk/ noun [uncountable]
[Language: Old English; Origin: cealc, from Latin calx ' ⇒ lime¹(2)', from Greek chalix 'small stone']

1. soft white or grey rock formed a long time ago from the shells of small sea animals Synonym : limestone:
chalk cliffs

2. (also chalks) [plural] small sticks of a white or coloured substance like soft rock, used for writing or drawing:
a box of coloured chalks
a piece of chalk
writing in chalk on the blackboard

3. chalk and cheese British English completely different from each other:
The two brothers are as different as chalk and cheese.
They’re like chalk and cheese, those two.
⇒ long chalk at long¹(21)

[TahlilGaran] Dictionary of Contemporary English ▲

II. chalk² verb [T + up/on]
to write, mark, or draw something with chalk
chalk something ↔ up phrasal verb

1. to succeed in getting something, especially points in a game:
Seattle chalked up another win last night over Denver.

2. to record what someone has done, what someone should pay etc
chalk something ↔ up to
You can chalk the drinks up to my account.

3. chalk it up to experience informal to accept a failure or disappointment calmly and regard it as an experience that you can learn something from

[TahlilGaran] Dictionary of Contemporary English ▲

chalk
noun
I. white rock
VERB + CHALK quarry
CHALK + NOUN cliff, downs, hill | pit, quarry

[TahlilGaran] Collocations Dictionary ▲

chalk
II. 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

[TahlilGaran] Collocations Dictionary ▲

chalk
tʃɔ:k
See: walk the chalk

[TahlilGaran] English Idioms Dictionary ▲