Meaning Of Certain

a.

Assured in mind; having no doubts; free from suspicions concerning.
a.

Determined; resolved; -- used with an infinitive.
a.

Not to be doubted or denied; established as a fact.
a.

Actually existing; sure to happen; inevitable.
a.

Unfailing; infallible.
a.

Fixed or stated; regular; determinate.
a.

Not specifically named; indeterminate; indefinite; one or some; -- sometimes used independenty as a noun, and meaning certain persons.
n.

Certainty.
n.

A certain number or quantity.
adv.

Certainly.