activity - any specific activity; "they avoided all recreational activity"

lengthening, perpetuation, prolongation, protraction - the act of prolonging something; "there was an indefinite prolongation of the peace talks"

repeating, repetition - the act of doing or performing again

perseverance, perseveration, persistence - the act of persisting or persevering; continuing or repeating behavior; "his perseveration continued to the point where it was no longer appropriate"

abidance - the act of abiding (enduring without yielding)

pursuance, prosecution - the continuance of something begun with a view to its completion

survival - something that survives

period, period of time, time period - an amount of time; "a time period of 30 years"; "hastened the period of time of his recovery"; "Picasso's blue period"

clocking - the time taken to traverse a measured course; "it was a world record clocking"

longueur - a period of dullness or boredom (especially in a work of literature or performing art)

residence time - the period of time spent in a particular place

span - the complete duration of something; "the job was finished in the span of an hour"

stint, stretch - an unbroken period of time during which you do something; "there were stretches of boredom"; "he did a stretch in the federal penitentiary"

time scale - an arrangement of events used as a measure of duration; "on the geological time scale mankind has existed but for a brief moment"

note value, time value, value - (music) the relative duration of a musical note

rule - the duration of a monarch's or government's power; "during the rule of Elizabeth"

time - the continuum of experience in which events pass from the future through the present to the past