#1 registration n. [enrollment, enrolment] the act of enrolling. wn
#2 registration n. [enrollment] the body of people (such as students) who register or enroll at the same time. wn
#3 registration n. a document certifying an act of registering. wn
#4 registration n. (music) the sound property resulting from a combination of organ stops used to perform a particular piece of music; the technique of selecting and adjusting organ stops. wn
#5 registration n. [adjustment, readjustment] the act of adjusting something to match a standard. wn
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