manual labour vs wiring

manual labour and wiring both are nouns.

Word	Noun	Adjective	Verb	Adverb
manual labour	Yes	No	No	No
wiring	Yes	No	No	No

As nouns, wiring is a hyponym of manual labour; that is, wiring is a word with a more specific, narrower meaning than manual labour:

Other hyponyms of manual labour include application, coating, covering, bodywork, handling, picking, planking.

manual labour (noun)	wiring (noun)
labor done with the hands	the work of installing the wires for an electrical system or device
	a circuit of wires for the distribution of electricity