tracklayer vs manual laborer

tracklayer and manual laborer both are nouns.

Word	Noun	Adjective	Verb	Adverb
tracklayer	Yes	No	No	No
manual laborer	Yes	No	No	No

As nouns, manual laborer is a hypernym of tracklayer; that is, manual laborer is a word with a broader meaning than tracklayer:

tracklayer: a workman who lays and repairs railroad tracks
manual laborer: someone who works with their hands; someone engaged in manual labor

Other hypernyms of tracklayer include jack, laborer, labourer.

tracklayer (noun)	manual laborer (noun)
a workman who lays and repairs railroad tracks	someone who works with their hands; someone engaged in manual labor