Onto Definition
ŏnto͝o, -tə, ôn-
preposition
To and upon; to a position on.
Webster's New World
Aware of or familiar with; esp., aware of the real nature or meaning of.
They're onto our schemes.
Webster's New World
adjective
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.
American Heritage
prefix
Existence; being.
Ontology.
American Heritage
Organism.
Ontogeny.
American Heritage
affix
Being, existence.
Ontology.
Webster's New World
Organism.
Ontogeny.
Webster's New World
Origin of Onto
-
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
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