Anagrams of: AILSTV

• urgently needed; absolutely necessary

• performing an essential function in the living body

• full of spirit; full of life

• manifesting or characteristic of life

• the visual percept of a region

• the forest trees growing in a country or region

• 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.

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

• unusually great in size or amount or degree or especially extent or scope

• an endorsement made in a passport that allows the bearer to enter the country issuing it

• provide (a passport) with a visa

• approve officially

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

• A curriculum vitae.