Anagrams of: BIVALVIA

• The sixth letter of the Hebrew alphabet, ו.

• a means of serving

• take advantage of

• be of use to, be useful to

• take or use

• (law) a defense by an accused person purporting to show that he or she could not have committed the crime in question

• a defense of some offensive behavior or some failure to keep a promise etc.

• exonerate by means of an alibi

• rock that in its molten form (as magma) issues from volcanoes; lava is what magma is called when it reaches the surface

• a small bottle that contains a drug (especially a sealed sterile container for injection by needle)

• Profit; return; proceeds.

• (chiefly in the plural) Money given to servants by visitors; a gratuity; also vale.

• Submission.

• Something hung up or spread out to hide or protect the face, or hide an object from view; usually of gauze, crepe, or similar diaphanous material.

• A cover; disguise; a mask; a pretense.

• The calyptra of mosses.

• A membrane connecting the margin of the pileus of a mushroom with the stalk; a velum.

• A covering for a person or thing; as, a caul (especially over the head)

• Velum (A circular membrane round the cap of medusa)

• A thin layer of tissue which is attached to or covers a mushroom.

• An obscuration of the clearness of the tones in pronunciation.

• To pay homage, bow, submit, defer (to someone or something); to yield, give way (to something).

• To remove as a sign of deference, as a hat.

• To lower, let fall; to allow or cause to sink.

• (vexillology) (current, operational) To lower or "dip" a carried flag or banner in a salute by a forward reducing of the angle of the pike/flagstaff with respect to the ground; in extreme instances, as when saluting a monarch, both the banner and the finial of the pike are allowed to rest upon the ground.

• To dress in, or decorate with, a veil.

• To conceal as with a veil.

• (criminal law) money that must be forfeited by the bondsman if an accused person fails to appear in court for trial

• the legal system that allows an accused person to be temporarily released from custody (usually on condition that a sum of money guarantees their appearance at trial)

• release after a security has been paid

• deliver something in trust to somebody for a special purpose and for a limited period

• secure the release of (someone) by providing security

• empty (a vessel) by bailing

• remove (water) from a vessel with a container

• A main road or highway, especially in ancient Rome. (Mainly used in set phrases, below.)

• A small hole in a printed circuit board filled with metal which connects two or more layers.

• By way of; passing through.

• By (means of); using.