label vs stigmatise

label is a noun but stigmatise is not a noun.

Word	Noun	Adjective	Verb	Adverb
label	Yes	No	Yes	No
stigmatise	No	No	Yes	No

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

label: assign a label to; designate with a label
stigmatise: to accuse or condemn or openly or formally or brand as disgraceful

Other hyponyms of label include call, address, direct, be known as, call, know as, name, brand, denounce, mark, stigmatize.

label (noun)	stigmatise (noun)
an identifying or descriptive marker that is attached to an object
a brief description given for purposes of identification
trade name of a company that produces musical recordings
a radioactive isotope that is used in a compound in order to trace the mechanism of a chemical reaction

label (verb)	stigmatise (verb)
distinguish (an element or atom) by using a radioactive isotope or an isotope of unusual mass for tracing through chemical reactions	mark with a stigma or stigmata
distinguish (as a compound or molecule) by introducing a labeled atom	to accuse or condemn or openly or formally or brand as disgraceful
assign a label to; designate with a label
pronounce judgment on
attach a tag or label to