The length of time that something lasts or continues.
“The duration of the introductory course is four weeks.”
“Membership duration varies depending on the plan selected.”
Diagrams about courses, memberships, or events often specify duration in a separate column (e.g., duration: 6 weeks). When answering questions, match the correct duration to its corresponding category rather than assuming all options have the same length. This word is a common paraphrase for 'how long' something lasts.
Synonyms: length, period, span