| BACKDRAFT | • backdraft n. (American spelling, firefighting) Sudden, dangerous recombustion that occurs when there is a rapid reintroduction… • BACKDRAFT n. a reverse movement of air, also BACKDRAUGHT. |
| BACKFALLS | • backfalls n. Plural of backfall. • BACKFALL n. a fall or throw on the back in wrestling. |
| BLACKFACE | • blackface n. (Uncountable) A style of makeup in which a non-black person blackens their face, usually in order to… • blackface n. (Countable) A sheep of the Scottish Blackface breed. • Blackface n. Alternative letter-case form of blackface (form of racist vaudeville entertainment). |
| CHALKFACE | • chalkface n. (Geology) A cliff or quarry exposing chalk, e.g. the White Cliffs of Dover. • chalkface n. (Education) The environment where teaching is carried out, specifically a school. • CHALKFACE n. as in the phrase at the chalkface, i.e. in the classroom, as the centre of a teacher's activities. |
| FACEMASKS | • facemasks n. Plural of facemask. • face␣masks n. Plural of face mask. • FACEMASK n. a device to shield the face. |
| FALLBACKS | • fallbacks n. Plural of fallback. • fall-backs n. Plural of fall-back. • FALLBACK n. a retreat, a contingency plan. |
| FASTBACKS | • fastbacks n. Plural of fastback. • FASTBACK n. a type of automobile roof. |
| FLAPJACKS | • flapjacks n. Plural of flapjack; pancakes. • FLAPJACK n. a kind of biscuit, also SLAPJACK. |
| FLAPTRACK | • flaptrack n. (Aviation) The track on which the flaps of an aircraft are mounted. • FLAPTRACK n. a racetrack for flapping i.e. unregistered horse-racing. |
| FLAREBACK | • flareback n. A burst of flame emitted from a cannon, furnace, etc. in an abnormal direction. • FLAREBACK n. a flame in the breech of a gun when fired. |
| FLASHBACK | • flashback n. (Authorship) A dramatic device in which an earlier event is inserted into the normal chronological flow… • flashback n. (Psychology) A vivid mental image of a past trauma or other sensation that the trauma is happening in… • flashback n. A similar recurrence of the effects of a hallucinogenic drug. |
| FLATBACKS | • flatbacks n. Plural of flatback. • FLATBACK n. a pottery figure with a flat back. |
| FLATPACKS | • flatpacks n. Plural of flatpack. • flat␣packs n. Plural of flat pack. • FLATPACK n. an item of furniture in a carton to be assembled. |
| HALFBACKS | • halfbacks n. Plural of halfback. • half-backs n. Plural of half-back. • HALFBACK n. a position in football. |
| HALFTRACK | • halftrack n. Alternative form of half-track. • halftrack adj. Alternative form of half-track. • half-track n. A vehicle combining both wheels and treads (caterpillar tracks). |
| JACKSHAFT | • jackshaft n. A common mechanical component used to transfer or synchronize rotational force in a machine. • jackshaft n. A wheelless axle used to turn the wheels of a locomotive. • jackshaft v. To transfer or synchronize rotational force by means of a jackshaft. |
| JACKSTAFF | • jackstaff n. (Nautical) a short spar, at the bows of a ship, that serves as a flagpole to fly a flag (a jack). • jack-staff n. Alternative spelling of jackstaff. • JACKSTAFF n. a short staff at a ship's bow, on which a jack is hoisted. |
| PACKFRAME | • PACKFRAME n. a light metal frame with shoulder straps, used for carrying heavy loads. |
| PACKSTAFF | • packstaff n. A pole on which a traveller carries a burden on the shoulder. • PACKSTAFF n. a staff for supporting a pedlar's pack when he or she rests. |