attend vs pay heed

attend and pay heed both are verbs.

Word	Noun	Adjective	Verb	Adverb
attend	No	No	Yes	No
pay heed	No	No	Yes	No

As verbs, attend and pay heed are synonyms defined as:

Other synonyms of attend include advert, give ear, hang.

attend (verb)	pay heed (verb)
give heed (to)	give heed (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