Et ai

Definition of Et ai

An abbreviation for et alii, “and others.” The singular is “et alius” (q.v.). It may also mean “and another” in the singular.

The abbreviation et al. (Sometimes in the plural written et als.) is often affixed to the name of the person first mentioned, where there are several plaintiffs, grantors, persons addressed, etc.

Where the words “et al.” are used in a judgment against defendants, the quoted words include all defendants. Williams v. Williams, 25 Tenn.App. 290, 156 S.W.2d 363, 369.

That's the definition of Et ai in Black's Law Dictionary 6th Edition. Courtesy of