1.Definition: (linguistics) a grammatical rule (or other linguistic feature) that is found in all languages

Category: General

2.Definition: (logic) a proposition that asserts something of all members of a class

Category: General

3.Definition: a behavioral convention or pattern characteristic of all members of a particular culture or of all human beings

"Some form of religion seems to be a human universal"

Category: General

4.Definition: coupling that connects two rotating shafts allowing freedom of movement in all directions

"In motor vehicles a universal joint allows the driveshaft to move up and down as the vehicle passes over bumps"

Category: Objects