course vs coursing

course and coursing both are nouns.

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

course (noun)	coursing (noun)
a mode of action	hunting with dogs (usually greyhounds) that are trained to chase game (such as hares) by sight instead of by scent
education imparted in a series of lessons or meetings
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)	coursing (adverb)
as might be expected