Literal translation: compare
In an English sentence: In my dictionary, the definition of the word “benevolent” is followed by the abbreviation cf. and the word “malevolent.” Cf. tells me that I should look up “malevolent” and compare the definitions of the two words.
The abbreviation cf. directs you to other entries in a dictionary. It is similar to the expression quod vide or vide meaning “which see” or “see.”
From Elizabeth Heimbach's book Latin Everywhere, Everyday