The 22nd letter of the modern English alphabet.

Empty or unoccupied; not filled by a person, thing, or thought.

To leave a place that one previously occupied.

A period of time spent away from home or business in travel or recreation.

A substance used to stimulate the production of antibodies and provide immunity against one or several diseases.

The state of being empty or devoid of matter; emptiness.

A small membrane-bound sac in the cytoplasm of a cell that stores water, nutrients, or waste.

Having or showing a lack of thought or intelligence; mindless.

A space entirely devoid of matter.

The muscular tube leading from the external genitals to the cervix of the uterus in women.

A person who wanders from place to place without a permanent home or employment.

Not clearly expressed or understood; ambiguous.

Having or showing an excessively high opinion of one's appearance or worth.

A student chosen to deliver a farewell or graduation address, often the top-ranked graduate.

Showing courage or determination; brave.

In Norse mythology, a Valkyrie is a female figure who chooses those who may die or live in battles.

To enhance or assign value to something.

The estimation of something's worth or value.

The regard that something is held to deserve; importance or worth.

A mythical creature that subsists by feeding on the life essence (usually in the form of blood) of the living.