usa flap of a garment; The envelope flap seemed curiously wrinkledthe flaps of a table; the flap of a shutterThe comment caused quite a flap in the newspapers
flare[[solar flaresolar flare]]Flares were used to steer the traffic away from the accident
flickerthe flicker of the dying candlethe flicker of a poorly tuned television set
gutterThe gutters must be cleared of leaves a few times a year.Get your mind out of the gutter.What kind of gutter language is that? I ought to wash your mouth out with soap.
waverFlowers wavered in the breeze.His voice wavered when the reporter brought up the controversial topic.Despite all terrible things which eventually happened to her, she never wavered from his beliefs.