flat-roofv. (transitive) to cover with a flat roof.
ΘΚΠ
society > occupation and work > industry > building or constructing > building or providing with specific parts > build or provide with specific parts [verb (transitive)] > roof > provide with flat roof
flat-roof1717
1717 J. Tabor in Philos. Trans. (Royal Soc.) 30 562 The Græcians us'd to cover or Flat-roof their Houses with these [tessellated] Pavements.