(mathematics, of a function) Assuming each of the values in its codomain; having its range equal to its codomain.

Ontological. / Pertaining to being generally, as opposed to some theory of it (which would be ontology).

(idiomatic, transitive) To obtain, acquire or get and keep hold of something.

Of or relating to ontology. / Of or pertaining to the nature of being or existence.

(transitive) To reverse a vehicle onto something. / (transitive) To overlook something from the rear.

ontogenetic

of or relating to ontogenesis

Language or other descriptive system which restricts that which can be described to that which can be.

(philosophy) The state of being forced to question one's worldview.

To contact a person or organisation about a particular matter. / To connect, especially to the Internet or a network. / (transitive) To scold someone.