methyl vs alkyl

methyl and alkyl both are nouns.

Word	Noun	Adjective	Verb	Adverb
methyl	Yes	No	No	No
alkyl	Yes	No	No	No

As nouns, alkyl is a hypernym of methyl; that is, alkyl is a word with a broader meaning than methyl:

methyl: the univalent radical CH3- derived from methane
alkyl: any of a series of univalent groups of the general formula CnH2n+1 derived from aliphatic hydrocarbons

Other hypernyms of methyl include alkyl group, alkyl radical.

methyl (noun)	alkyl (noun)
the univalent radical CH3- derived from methane	any of a series of univalent groups of the general formula CnH2n+1 derived from aliphatic hydrocarbons