What type of word is "duration"?

The word duration is a noun, specifically a common noun, abstract noun, and countable noun that refers to length of time something lasts. As noun, duration names a concept of time span, not a person, place, or action. It is abstract noun because it refers to intangible concept of time length rather than physical object you can touch, like happiness or time. It is countable noun because you can have durations, such as different durations of movies, though often used as uncountable when referring to general concept of time length. Duration functions as subject or object in sentence, for example duration was long, or what is duration of meeting. It can be modified by adjectives like long duration, short duration, brief duration. It comes from Latin duratio from durare meaning to last, with suffix tion forming noun. In grammar, duration can be used in phrases like for the duration of, during duration. In roofing, Owens Corning Duration is brand name where Duration is used as proper noun part of product name. As type of word, duration is not verb, adjective, or adverb, it is noun. It is not pronoun, preposition, or conjunction. So type of word is noun, abstract common noun, countable, used to describe length of time event persists, answering how long something lasts, with plural form durations.