pouf, poof

Pouf or pouf means an arrangement of hair or fabric in a full round  shape--
She made an old-fashioned gown, and wore her hair in a powdered pouf.
The dress has a pouf of pink satin on each shoulder; it looks like a costume.

Pouf may also mean a small hassock, or a cushion used as a seat--
We bought some fabric to make a pouf for the living room.

Poof or poof ( rhymes with pouf ) means the sound made by something disappearing, as if in a puff of smoke--
He was standing on the stage, when suddenly "poof!" he vanished.
All that work went "poof!" up in smoke.

Now that you know that, you can say--
"He touched the pouf of silk on her dress, and "poof!" she disappeared."

Note--"puff" means a short burst of wind or breath--
"Or I'll huff, and I'll puff, and I'll blow your house in..."

"Puff" may also mean to swell or inflate, literally or figuratively--
Watch the cat puff up every time he hears a dog go by outside.
His parents will puff with pride when they hear the news.

"Puff" may also mean a soft or feathery pad or ball, used to apply powder to the skin--
We bought her a box of powder with a fancy pink puff; she's sure to like it.