stabilize vs strengthen

stabilize and strengthen both are verbs.

Word	Noun	Adjective	Verb	Adverb
stabilize	No	No	Yes	No
strengthen	No	No	Yes	No

As verbs, strengthen is a hypernym of stabilize; that is, strengthen is a word with a broader meaning than stabilize:

stabilize: support or hold steady and make steadfast, with or as if with a brace
strengthen: make strong or stronger

Other hypernyms of stabilize include beef up, fortify.

stabilize (verb)	strengthen (verb)
become stable or more stable	give a healthy elasticity to
make stable and keep from fluctuating or put into an equilibrium	gain strength
support or hold steady and make steadfast, with or as if with a brace	make strong or stronger