designate vs signalize

designate is an adjective but signalize is not an adjective.

Word	Noun	Adjective	Verb	Adverb
designate	No	Yes	Yes	No
signalize	No	No	Yes	No

As verbs, signalize is a hyponym of designate; that is, signalize is a word with a more specific, narrower meaning than designate:

designate: indicate a place, direction, person, or thing; either spatially or figuratively
signalize: point out carefully and clearly

Other hyponyms of designate include point, finger, call attention, point out, signalise, reflect.

designate (adjective)	signalize (adjective)
appointed but not yet installed in office

designate (verb)	signalize (verb)
design or destine	make conspicuous or noteworthy
assign a name or title to	communicate silently and non-verbally by signals or signs
decree or designate beforehand	point out carefully and clearly
indicate a place, direction, person, or thing; either spatially or figuratively	provide with traffic signals
give an assignment to (a person) to a post, or assign a task to (a person)