| BRAINFARTS | • brainfarts n. Plural of brainfart. • brain-farts n. Plural of brain-fart. • brain␣farts n. Plural of brain fart. |
| BRUSHFIRES | • brushfires n. Plural of brushfire. • brush-fires n. Plural of brush-fire. • brush␣fires n. Plural of brush fire. |
| BURRFISHES | • burrfishes n. Plural of burrfish. • BURRFISH n. a fish with erect spines. |
| DEBRIEFERS | • debriefers n. Plural of debriefer. • DEBRIEFER n. one who debriefs. |
| FIREBOARDS | • fireboards n. Plural of fireboard. • FIREBOARD n. a mantelpiece. |
| FIREBRANDS | • firebrands n. Plural of firebrand. • FIREBRAND n. a flaming stick; a hot-tempered person. |
| FIREBREAKS | • firebreaks n. Plural of firebreak. • fire␣breaks n. Plural of fire break. • FIREBREAK n. a strip of land kept clear to stop the spread of a fire. |
| FIREBRICKS | • firebricks n. Plural of firebrick. • fire␣bricks n. Plural of fire brick. • FIREBRICK n. a brick resistant to fire, used for furnace linings, grates, etc. |
| FIRSTBORNS | • firstborns n. Plural of firstborn. • FIRSTBORN n. the first in order of birth, the eldest child. |
| FISHBURGER | • fishburger n. A burger made with fish instead of beef. • FISHBURGER n. a hamburger made with fish. |
| FORBIDDERS | • forbidders n. Plural of forbidder. • FORBIDDER n. one who forbids. |
| FOREBRAINS | • forebrains n. Plural of forebrain. • FOREBRAIN n. the anterior region of the embryonic brain. |
| FOXBERRIES | • foxberries n. Plural of foxberry. • FOXBERRY n. the red whortleberry. |
| FRIARBIRDS | • friarbirds n. Plural of friarbird. • friar␣birds n. Plural of friar bird. • FRIARBIRD n. an Australian honeyeater with featherless head. |
| FRITHBORHS | • frithborhs n. Plural of frithborh. • FRITHBORH n. (Old English) a surety for keeping the peace, aka frankpledge. |
| FURBISHERS | • furbishers n. Plural of furbisher. • FURBISHER n. one who furbishes; esp. a sword cutler, who finishes sword blades and similar weapons. |
| OVERBRIEFS | • OVERBRIEF v. to brief excessively. |
| RIFLEBIRDS | • riflebirds n. Plural of riflebird. • RIFLEBIRD n. each of three birds of paradise of the genus Ptiloris, having velvety black plumage with bright coloured patches, and a long bill. |