sprayer vs labourer

sprayer and labourer both are nouns.

Word	Noun	Adjective	Verb	Adverb
sprayer	Yes	No	No	No
labourer	Yes	No	No	No

As nouns, labourer is a hypernym of sprayer; that is, labourer is a word with a broader meaning than sprayer:

sprayer: a worker who applies spray to a surface
labourer: someone who works with their hands; someone engaged in manual labor

Other hypernyms of sprayer include jack, laborer, manual laborer.

sprayer (noun)	labourer (noun)
a dispenser that turns a liquid (such as perfume) into a fine mist	someone who works with their hands; someone engaged in manual labor
a worker who applies spray to a surface