| BACKFILES | • backfiles n. Plural of backfile. • BACKFILE n. the back numbers of a newspaper. |
| BACKFIRES | • backfires n. Plural of backfire. • backfires v. Third-person singular simple present indicative form of backfire. • back␣fires n. Plural of back fire. |
| BEEFCAKES | • beefcakes n. Plural of beefcake. • BEEFCAKE n. a picture of a male muscleman. |
| FACEBOOKS | • facebooks n. Plural of facebook. • facebooks v. Third-person singular simple present indicative form of facebook. • facebooks v. Alternative form of Facebooks. |
| FEEDBACKS | • feedbacks n. (Proscribed) plural of feedback. • feedbacks v. Third-person singular simple present indicative form of feedback. • FEEDBACK n. a return of ideas for future development. |
| FIREBACKS | • firebacks n. Plural of fireback. • FIREBACK n. a cast-iron plate at the back of a fireplace. |
| BACKFIELDS | • backfields n. Plural of backfield. • BACKFIELD n. in American football, the backs collectively. |
| BLACKFACES | • blackfaces n. Plural of blackface. • Blackfaces n. Plural of Blackface. • BLACKFACE n. a breed of sheep. |
| BLACKFLIES | • blackflies n. Plural of blackfly. • BLACKFLY n. a biting fly. |
| FLAREBACKS | • flarebacks n. Plural of flareback. • FLAREBACK n. a flame in the breech of a gun when fired. |
| BACKFISCHES | • backfisches n. Plural of backfisch. • BACKFISCH n. (German) a young girl, a flapper. |
| BLACKFISHES | • blackfishes n. Plural of blackfish. • BLACKFISH n. a colloquial name for various species of fish. |
| FIDDLEBACKS | • fiddlebacks n. Plural of fiddleback. • FIDDLEBACK n. a wavy grain found in some woods commonly used for the manufacture of violins. |
| FLASHBACKED | • flashbacked v. Simple past tense and past participle of flashback. • FLASHBACK v. to show a flashback. |
| BIOFEEDBACKS | • biofeedbacks n. Plural of biofeedback. • BIOFEEDBACK n. a technique for learning control of autonomic body functions in response to monitoring by electronic instruments such as an electrocardiograph. |
| NEUROFEEDBACKS | • NEUROFEEDBACK n. a therapy technique that presents the user with realtime feedback on brainwave activity. |