universal
noun(u-ni-ver-sal)
(linguistics) a grammatical rule (or other linguistic feature) that is found in all languages
Synonyms: linguistic universal, 
universal
noun(u-ni-ver-sal)
(logic) a proposition that asserts something of all members of a class
Synonyms: universal proposition, 
universal
noun(u-ni-ver-sal)
coupling that connects two rotating shafts allowing freedom of movement in all directions
Synonyms: universal joint, 
Examples:
In motor vehicles a universal joint allows the driveshaft to move up and down as the vehicle passes over bumps. 
universal
adjective(u-ni-ver-sal)
of worldwide scope or applicability
Examples:
Universal experience. 
universal
noun(u-ni-ver-sal)
a behavioral convention or pattern characteristic of all members of a particular culture or of all human beings
Examples:
Some form of religion seems to be a human universal. 
universal
adjective(u-ni-ver-sal)
adapted to various purposes, sizes, forms, operations
Examples:
Universal wrench. 
Universal chuck. 
Universal screwdriver. 
universal
adjective(u-ni-ver-sal)
applicable to or common to all members of a group or set
Examples:
The play opened to universal acclaim. 
Rap enjoys universal appeal among teenage boys.