The San Francisco Bay Area is enclosed by land on the north, east, and south sides. To the west, there is a waterway opening to the Pacific Ocean. This waterway is known as the Golden Gate, and it is spanned by the Golden Gate Bridge. The city of San Francisco lies on the northern end of the San Francisco Peninsula, which is the strip of land that encloses part of the west side of the bay, partially separating the bay from the Pacific Ocean. What does spanned mean in this context, use context clues.
points: one point for each definition, one point for each explanation, one point for proper mechanics
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