loader vs attender

loader and attender both are nouns.

Word	Noun	Adjective	Verb	Adverb
loader	Yes	No	No	No
attender	Yes	No	No	No

As nouns, attender is a hypernym of loader; that is, attender is a word with a broader meaning than loader:

loader: an attendant who loads guns for someone shooting game
attender: someone who waits on or tends to or attends to the needs of another

Other hypernyms of loader include attendant, tender.

loader (noun)	attender (noun)
a laborer who loads and unloads vessels in a port	someone who waits on or tends to or attends to the needs of another
an attendant who loads guns for someone shooting game	a person who is present and participates in a meeting
	someone who listens attentively