"chalk" in the noun sense
a soft whitish calcite
a pure flat white with little reflectance
3. methamphetamine, methamphetamine hydrochloride, Methedrine, meth, deoxyephedrine, chalk, chicken feed, crank, glass, ice, shabu, trash
an amphetamine derivative (trade name Methedrine) used in the form of a crystalline hydrochloride used as a stimulant to the nervous system and as an appetite suppressant
a piece of calcite or a similar substance, usually in the shape of a crayon, that is used to write or draw on blackboards or other flat surfaces
"chalk" in the verb sense
write, draw, or trace with chalk
Source: WordNet® (An amazing lexical database of English)
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