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lieutenant in the U.S. Air Force, Army, or Marine Corps, an officer ranking just below captain; first lieutenant. [4 definitions]
lieutenant colonel a U.S. military officer whose rank is above that of major and below that of colonel.
lieutenant commander an officer in the U.S. Navy or Coast Guard whose rank is above that of lieutenant and below that of commander.
lieutenant general a U.S. military officer whose rank is above that of major general and below that of general.
lieutenant governor in the United States, an elected official of a state who ranks just below the governor and who assumes the governor's position in the event of the latter's absence or death. [2 definitions]
lieutenant junior grade an officer in the U.S. Navy whose rank is above that of ensign and below that of lieutenant.
life the state of being that distinguishes animals and plants from rocks, minerals, and other nonliving matter. [10 definitions]
life belt a life preserver that fastens around a person's waist like a belt.
lifeblood the blood essential to life. [2 definitions]
lifeboat a ship's boat designed for rapid rescue of persons, or a similar boat used from shore.
life buoy a buoyant ring-shaped device usu. kept on boats, used to keep a person afloat until he or she can be rescued.
life cycle the continuous changes undergone by an organism in its development from its earliest stage until it is able to reproduce. [2 definitions]
life expectancy the statistically predicted length of time that an individual of any species can be expected to live.
life force see Úlan vital.
life-giving able to give life; revitalizing; refreshing; inspiring.
lifeguard a person employed to watch over a swimming area and rescue anyone who might be drowning.
life history the history of changes undergone by an organism in the course of its lifetime from conception to death. [3 definitions]
life insurance insurance that guarantees payment of a specific sum to a named beneficiary upon the death of the insured or to a policyholder who reaches a certain specified age.
life jacket a life preserver in the form of a sleeveless vest or jacket; life vest.
lifeless having or appearing to have no life; inanimate; unconscious. [3 definitions]
lifelike closely resembling or simulating real life.