Flounder is a word for a flat fish.
Did you mean "I live in a flat"? If so, then it's "Vivo en un apartamento." It's a cognate with the American-English word for flat -- apartment.
The word "flat" has one syllable.
The word to lay down flat is... prone. Cookiecrisp$$
flat
The word is flatter. (It has nothing to do with flat as in "flat as a pancake")
Wyoming is derived from the Native American tribe, Munsee Delaware, word: xwe-wamenk - meaning: big river flat
It was the American Civil War where American troops wore flat caps called kepis.
Flat can be a noun:I have a flat on my car.When used to modify another word, it is not a noun:I have a flat tire on my car.
A mesa has a flat top.
The flat surface felt smooth.
Polygons are flat shapes