Privacy Definition
Privacy Lock; Door locks that are used for bathrooms and some bedrooms that have a push button or thumb turn mechanisms.
Passage Definition
Passage Lock; Knobs or levers used on closets or pantries with no locking mechanism are called passage locks.
Dummy Knob/Lever Definition
Dummy; One sided knobs or levers which go on a flush door surface are called dummy knobs or dummy levers.
Deadbolt Definition
Dead bolts; Stationary locks that have no turning function and are usually located on exterior doors above an entry lock.
Handleset Definition
Handleset; Front doors often have a decorative hardware peice.
Entry Definition
Entry lock; Any door knob or lever that has a place for a key.
For more examples on door hardware functions go to tfthardware.