Life is a characteristic distinguishing physical entities having biological processes (such as signaling and self-sustaining processes) from those that do not, either because such functions have ceased (death), or because they lack such functions and are classified as . Various forms of life exist such as plants, animals, fungi, protists, archaea, and bacteria. The criteria can at times be ambiguous and may or may not define viruses, viroids or potential artificial life as living. Biology is the primary science concerned with the study of life, although many other sciences are involved.

Life magazine, stylized LIFE, was an American magazine that ran weekly from 1883 to 1972, published initially as a humor and general interest magazine. Time founder Henry Luce bought the magazine in 1936, solely so that he could acquire the rights to its name, and shifted it to a role as a weekly news magazine with a strong emphasis on photojournalism. Life was published weekly until 1972, as an intermittent "special" until 1978, and as a monthly from 1978 to 2002.

life:) may refer to:

• , a mobile network operator in Belarus
• , a mobile network operator in Ukraine

The lithium iron phosphate battery, also called LFP battery (with "LFP" standing for "lithium ferrophosphate"), is a type of rechargeable battery, specifically a lithium-ion battery, which uses as a cathode material. batteries have somewhat lower energy density than the more common design found in consumer electronics, but offers longer lifetimes, better power density (the rate that energy can be drawn from them) and are inherently safer. is finding a number of roles in vehicle use and backup power.