covering vs manual labour

covering and manual labour both are nouns.

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

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

Other hypernyms of covering include manual labor.

covering (noun)	manual labour (noun)
the act of protecting something by covering it	labor done with the hands
the work of applying something
the act of concealing the existence of something by obstructing the view of it
an artifact that covers something else (usually to protect or shelter or conceal it)
a natural object that covers or envelops