spread out
US /spred aʊt/
UK /spred aʊt/

1.
to extend over a large or increasing area
:
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The city has spread out over the years, incorporating many smaller towns.
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The roots of the tree spread out widely.
2.
to arrange things so that they cover a large area
:
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Please spread out the maps on the table so we can see them all.
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The teacher asked the students to spread out their work on the floor.