Onto meaning

ŏnto͝o, -tə, ôn-

Onto is defined as to or upon.

An example of onto is someone jumping from the top of one rock to another.

preposition

Fully aware of; informed about.

The police are onto the robbers' plans.

preposition

On top of; to a position on; upon.

The dog jumped onto the chair.

preposition

Of, relating to, or being a function such that every element of the codomain is the value that corresponds to an element in the domain.

adjective

Existence; being.

Ontology.

prefix

Organism.

Ontogeny.

prefix

To and upon; to a position on.

preposition

Aware of or familiar with; esp., aware of the real nature or meaning of.

They're onto our schemes.

preposition

Being, existence.

Ontology.

affix

Organism.

Ontogeny.

affix

Upon; on top of.

My cat just jumped onto the keyboard.

preposition

(informal) Aware of.

(The thought-police were onto my plans of World domination.)

preposition

(mathematics) Being an onto function with a codomain of (see below).

The exponential function maps the set of real numbers onto the set of positive real numbers.

preposition

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

Considered as a function on the real numbers, the exponential function is not onto.

adjective

Origin of onto

< Gr ōn (gen. ontos), prp. of einai, to be < IE base *es- > is

From Webster's New World College Dictionary, 5th Edition
Late Greek from Greek ōn ont- present participle of einai to be es- in Indo-European roots

From American Heritage Dictionary of the English Language, 5th Edition

Onto meaning

Origin of onto

From Webster's New World College Dictionary, 5th Edition

From American Heritage Dictionary of the English Language, 5th Edition

Onto Sentence Examples

Related articles

Also Mentioned In

Words near onto in the Dictionary

Filter