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Strong; powerful; efficient. [Obs.] "Perhaps more valid arms . . . may serve to better us." Milton.

To confirm; to render valid; to give legal force to. The chamber of deputies . . . refusing to validate at once the election of an official candidate. London Spectator.

The act of giving validity. [R.] Knowles.

The quality or state of being valid; strength; force; especially, power to convince; justness; soundness; as, the validity of an argument or proof; the validity of an objection.

In a valid manner; so as to be valid.

The quality or state of being valid.

Of no force, weight, or cogency; not valid; weak.

To render invalid; to weaken or lessen the force of; to destroy the authority of; to render of no force or effect; to overthrow; as, to invalidate an agreement or argument.

The act of inavlidating, or the state of being invalidated. So many invalidations of their right. Burke.

See Invalid, n.

The condition of an invalid; sickness; infirmity.

Want of validity or cogency; want of legal force or efficacy; invalidness; as, the invalidity of an agreement or of a will.

Invalidity; as, the invalidness of reasoning.

To own as genuine; to assent to, as a legal instrument, to give it validity; to avow or admit in legal form; as, to acknowledgea deed.

A declaration or avowal of one's own act, to give it legal validity; as, the acknowledgment of a deed before a proper officer. Also, the certificate of the officer attesting such declaration. Acknowledgment money, in some parts of England, a sum paid by copyhold tenants, on the death of their landlords, as an acknowled…

Received as true or valid; acknowledged. -- Ad*mit"ted*ly adv.

The act of annulling; abolition; invalidation.

ined from the rootstocks of Maranta arundinacea, and used as food, esp. for children an invalids; also, a similar starch obtained from other plants, as various species of Maranta and Curcuma.

Having sufficient power, force, or efficacy, for the object; effectual; valid; as, an available plea. [Obs.] Laws human are available by consent. Hooker.

Competent power; validity; efficacy; as, the availableness of a title. [Obs.]