If you're studying modes you will have to have already learned most of these words. Modes are a more advanced concept but become easier when you compare them to something you already know (major scales).
Yeah! I came across a book that was literally just fingering charts for all these scales in all the keys and I was like, wait a second, this is dumb...
C Major starting and ending on D is D Dorian.
C Major starting and ending on E is E Phrygian.
Etc.