course vs swath

course and swath both are nouns.

Word	Noun	Adjective	Verb	Adverb
course	Yes	No	Yes	Yes
swath	Yes	No	No	No

As nouns, swath is a hyponym of course; that is, swath is a word with a more specific, narrower meaning than course:

Other hyponyms of course include collision course, inside track, round, steps, belt, trail.

course (noun)	swath (noun)
a mode of action	a path or strip (as cut by one course of mowing)
education imparted in a series of lessons or meetings	the space created by the swing of a scythe or the cut of a mowing machine
facility consisting of a circumscribed area of land or water laid out for a sport
(construction) a layer of masonry
part of a meal served at one time
a connected series of events or actions or developments
a body of students who are taught together
general line of orientation
a line or route along which something travels or moves

course (adverb)	swath (adverb)
as might be expected