chalk vs upper

chalk and upper both are nouns.

chalk is not an adjective while upper is an adjective.

chalk is a verb but upper is not a verb.

Word	Noun	Adjective	Verb	Adverb
chalk	Yes	No	Yes	No
upper	Yes	Yes	No	No

As nouns, upper is a hypernym of chalk; that is, upper is a word with a broader meaning than chalk:

chalk: 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
upper: a central nervous system stimulant that increases energy and decreases appetite; used to treat narcolepsy and some forms of depression

Other hypernyms of chalk include amphetamine, pep pill, speed, controlled substance.

chalk (noun)	upper (noun)
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	piece of leather or synthetic material that forms the part of a shoe or boot above the sole that encases the foot
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 central nervous system stimulant that increases energy and decreases appetite; used to treat narcolepsy and some forms of depression
a pure flat white with little reflectance	the higher of two berths
a soft whitish calcite

chalk (adjective)	upper (adjective)
	the topmost one of two; upper
	higher in place or position
	superior in rank or accomplishment

chalk (verb)	upper (verb)
write, draw, or trace with chalk

Difference between chalk and upper

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