'cf.' is an abbreviation for the
Latin word ''confer'', meaning "compare" or "consult".
It is mainly used in
common and statute law contexts as well as in academic writing.
Thus "'cf.'" is often used by authors in the text of their article or book to refer to other academic material which may provide auxilliary information or arguments to the understanding of theirs.
It is sometimes used (primarily in dictionaries) to imply insight into the preceding word's
etymology — that is, to suggest how one term obtained its particular naming convention (perhaps from another phrase). For example, the phrase "
Big Whack (cf.
Big Bang)" suggests to the reader that the usage of the
moniker (self given nickname) ''Big Whack'' derives at least its name from the latter.
In the system of
binomial nomenclature, the use of "cf." is similarly used to indicate that the species need be seen in context of its comparison to another, but by definition is not confirmed as the same. For example ''Corvus'' cf. ''splendens'' indicates "a bird similar to the
House Crow but not certainly identified as this species". For this reason many mistakenly believe that "cf" is an abbreviated form of "confirmed" or "inconfirmatus" or the like.
References
Law Encyclopedia information about Cf on Answers.com. West's Encyclopedia of American Law Copyright © 1998 by The Gale Group, Inc. Published by The Gale Group, Inc.