lifespan

Noun lifespan has 1 sense

• lifespan(n = noun.time) life, life-time, lifetime - the period during which something is functional (as between birth and death); "the battery had a short life"; "he lived a long and happy life"
is a kind of period, period of time, time period
has parts: birth, death, demise, dying, time of life, age, eld
has particulars: afterlife, hereafter