plaster vs stick on

plaster is a noun but stick on is not a noun.

Word	Noun	Adjective	Verb	Adverb
plaster	Yes	No	Yes	No
stick on	No	No	Yes	No

As verbs, plaster and stick on are synonyms defined as:

Other synonyms of plaster include plaster over.

As verbs, stick on is a hypernym of plaster; that is, stick on is a word with a broader meaning than plaster:

Other hypernyms of plaster include affix.

plaster (noun)	stick on (noun)
adhesive tape used in dressing wounds
a surface of hardened plaster (as on a wall or ceiling)
a medical dressing consisting of a soft heated mass of meal or clay that is spread on a cloth and applied to the skin to treat inflamed areas or improve circulation etc.
a mixture of lime or gypsum with sand and water; hardens into a smooth solid; used to cover walls and ceilings
any of several gypsum cements; a white powder (a form of calcium sulphate) that forms a paste when mixed with water and hardens into a solid; used in making molds and sculptures and casts for broken limbs

plaster (verb)	stick on (verb)
dress by covering with a therapeutic substance	stick or fasten to
coat with plaster	apply a heavy coat to
apply a heavy coat to
apply a plaster cast to
affix conspicuously
cover conspicuously or thickly, as by pasting something on