attend vs wait on

attend and wait on both are verbs.

Word	Noun	Adjective	Verb	Adverb
attend	No	No	Yes	No
wait on	No	No	Yes	No

As verbs, attend and wait on are synonyms defined as:

Other synonyms of attend include assist, attend to, serve.

attend (verb)	wait on (verb)
give heed (to)	work for, or be a servant to
work for, or be a servant to
take charge of or deal with
be present at (meetings, church services, university), etc.
to accompany as a circumstance or follow as a result