The Japanese noun '寿命 (じゅみょう)' refers to the length of time that a living being, object, or system is expected to live or function. It is commonly used in contexts discussing the natural life expectancy of humans, animals, or even the durability of machines and technology. For example: The lifespan of a cat is about 15 years「猫の寿命は約15年です」(ねこのじゅみょうはやく15ねんです). This smartphone has a short lifespan「このスマートフォンは寿命が短い」(このスマートフォンはじゅみょうがみじかい). The word can also be used metaphorically to describe the 'life' of non-living things, such as the lifespan of a product or trend.
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