n.
1.the act of enrolling
2.the body of people (such as students) who register or enroll at the same time
3.a document certifying an act of registering
4.(music) the sound property resulting from a combination of organ stops used to perform a particular piece of music
5.the act of adjusting something to match a standard
Idiom of the Day
by the skin of one's teeth
by a very small margin, barely
I arrived at the train station and was on time by the skin of my teeth.