WordNet sense 1 (an accounting entry acknowledging income or capital items):

credit entry

WordNet sense 2 (arrangement for deferred payment for goods and services):

deferred payment

WordNet sense 3 (a short note recognizing a source of information or of a quoted passage):

acknowledgment, citation, cite, mention, quotation, reference

WordNet sense 4 (approval):

recognition

WordNet sense 5 (give credit for):

accredit

WordNet sense 6 (recognition by a college or university that a course of studies has been successfully completed; typically measured in semester hours):

course credit