"spans" in the noun sense
1. span
the complete duration of something
"the job was finished in the span of an hour"
2. span
the distance or interval between two points
3. couple, pair, twosome, twain, brace, span, yoke, couplet, distich, duo, duet, dyad, duad
two items of the same kind
4. span
a unit of length based on the width of the expanded human hand (usually taken as 9 inches)
5. bridge, span
a structure that allows people or vehicles to cross an obstacle such as a river or canal or railway etc.
6. straddle, span
the act of sitting or standing astride
"spans" in the verb sense
1. cross, traverse, span, sweep
to cover or extend over an area or time period
"Rivers traverse the valley floor"
"The parking lot spans 3 acres"
"The novel spans three centuries"
Source: WordNet® (An amazing lexical database of English)
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