قاموس اللغة الإنجليزية

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

Determined; resolved; -- used with an infinitive.

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

Actually existing; sure to happen; inevitable.

Unfailing; infallible.

Fixed or stated; regular; determinate.

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

Certainty.

A certain number or quantity.

Certainly.