1. plural of span; periods of time or distances across something

1. extends across or covers the length or breadth of something
2. covers or includes a period of time

Examples

• The bridge spans the entire river.
• Her career spans three decades.
• The book spans several generations of the family.
• The wingspan spans nearly six feet.
• This project spans multiple departments.
• The timeline spans from 1900 to 2000.
• The arch spans the doorway beautifully.