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V-2 a liquid-fuel rocket used as a missile by Germany against Great Britain toward the end of World War II.
VA1 abbreviation of "Virginia," a southern U.S. state on the Atlantic coast between Maryland and North Carolina.
VA2 abbreviation of "Veterans Administration," a U.S. federal agency that administers the laws governing benefits for veterans of the armed forces.
vacancy vacant condition or quality; emptiness. [3 definitions]
vacant without contents or activity; unfilled; empty. [3 definitions]
vacate to make vacant or unoccupied by leaving. [2 definitions]
vacation a period of rest, leisure, recreation, or travel, esp. away from one's regular occupation. [3 definitions]
vacationer a person who is taking a vacation, esp. one traveling or enjoying leisure during a vacation.
vaccinate to inoculate with a vaccine to make immune to a particular disease.
vaccination the act or practice of inoculating persons or animals with modified, killed, or avirulent viruses or bacteria in order to protect against specific diseases.
vaccine a specimen of modified, killed, or avirulent viruses or bacteria, used to inoculate persons or animals in order to stimulate their immune systems to protect against virulent strains. [3 definitions]
vacillate to hesitate or waver in giving an opinion or making a decision; be indecisive. [2 definitions]
Václav Havel Czech author, playwright, and politician, who was the last President of Czechoslovakia and the first President of the Czech Republic (b.1936).
vacuity the state of being empty; emptiness. [4 definitions]
vacuole a membranous enclosure within a cell that contains substances isolated from the protoplasm, such as dissolved acids. [2 definitions]
vacuous lacking any content; empty. [2 definitions]
vacuum a space empty of all matter. [5 definitions]
vacuum bottle a bottle or flask with a vacuum between its double walls which helps to sustain the original temperature of the contents; thermos.
vacuum cleaner an electrical appliance that cleans floors, carpets, and the like by suction; vacuum sweeper.
vacuum-packed packed in a container from which as much of the air as possible has been removed before sealing.
vacuum tube an electron tube, formerly used in radio and electronics, from which the air has been evacuated, enabling electrons to move freely within the vacuum.