A dictionary of Confusable Phrases: More Than 10,000 Idioms and Collocations

flapjack (UK) • flapjack (U.S.)
flapjack (UK)—a flat cake made from rolled oats, fat, brown
sugar and syrup or honey: Not sure if it’s usual for British
people to eat flapjacks for breakfast, it just happened to be in
my line of sight…
flapjack (U.S.)—a thin crispy pancake of large diameter,
commonly measuring 
1
2” or more: There’s much more on pro-
viding life’s basics: …how to skin a bear, blaze a trail, cook
flapjacks on a flat rock.
flashing light • flashlight
flashing light—a lighting device, used in lighthouses, etc.,
giving forth sudden flashes: Another change has been the dis-
placement of the semaphore-type of direction indicator by
flashing light signals.
flashlight—
1
. = flashing light: The practice of a flashlight on
sails as something approaches in the darkness is a good one.
2. (also: flash-lamp) a portable electric lamp: Barry examined
them by the same pencil flashlight — a tiny streak of illumi-
nation. 3. an intense flash of light produced in cameras: The
paranormal displacement of a handkerchief actuated electri-
cally the flashlight by which this photograph was taken.
flea bite • flea-bitten
flea bite —a trifling inconvenience; a small problem: The
great Battle of Marathon was a mere flea-bite for an empire
that stretched from India to Egypt.
flea-bitten —said of smth. worn and broken down by hard
use: Up to now the landlords have held back from replacing
any of the old flea-bitten furniture.
flight deck • flying deck
flight deck —
1
. the uppermost deck of an aircraft carrier serv-
ing as landing and takeoff area: Brown successfully took off
in about half the length of the flight deck. 2. the forward com-
partment in some airplanes used by the pilot, copilot and
flight engineer: Rebel snipers fired on one of the planes and
hit it. One shot went through the flight deck.
flying deck —
1
. = flight deck 
1
: The “Vindex” was the first
ship to be fitted with a forward hangar and flying deck. 2. a
deck on a ship supported at the side by railings: A search-
light, which had been fitted up on the flying-deck of the
steamer, had an extraordinary effect upon the natives.