As nouns the difference between brills and drills
is that brills is or brills can be the hair on the eyelids of a horse while drills is .
As a verb drills is
(drill).
brills
English
Etymology 1
Noun
(head)
Etymology 2
Compare (etyl) Brille spectacles.
drills
English
Noun
(head)
Verb
(head)
(drill)
----