This is the 3974th most frequent Japanese word.
スパン
"スパン" (span) refers to a length, duration, or range.
スパン is used here to refer to the duration or period of time necessary for completing the project.
プロジェクトの完成には長いスパンが必要です。
The project requires a long span to complete.
スパン refers to the distance between two supports or ends of the bridge.
この橋のスパンはかなり広いです。
The span of this bridge is quite wide.
スパン describes the entire duration or lifecycle wherein the action is performed continuously.