flatten out

Definitions of flatten out
1

v become flat or flatter

Synonyms:
flatten
Types:
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splat
flatten on impact
press
place between two surfaces and apply weight or pressure
iron, iron out, press
press and smooth with a heated iron
calender
press between rollers or plates so as to smooth, glaze, or thin into sheets
Type of:
change form, change shape, deform
assume a different shape or form

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