Pronunciation: (klas'u-fī"), [key]
—v.t., -fied, -fy•ing.
1. to arrange or organize by classes; order according to class.
2. to assign a classification to (information, a document, etc.). Cf. classification (def. 5).
3. to limit the availability of (information, a document, etc.) to authorized persons.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.