walls, doors and windows
DW in a kitchen floor plan means Dish Washer.
Parallel hidden lines
OTS means Open to SKy
Look more closely. Does it say "AFF" perhaps? That means "above finished floor".
Work in Revision. This means that this area of the drawing may change.
warming oven ... only on a fancy floor plan!
What does KS mean on a floor plan? Knee Space
You might be thinking of a Blueprint. Or a floor plan.
Pianta in Italian means either "floor plan" or "(botanical) plant" in English.
I think it means "return air" - a duct for a ducted heating and/or cooling system
Floor plan mean Scottish plan. It shows the distance of room from the floor and physical appearance of room walls and all other features of rooms.
You can find a auto cad floor plan up ur butt