16-letter words containing a, u, c, k
- krebs urea cycle — urea cycle.
- kurdaitcha shoes — (in certain Central Australian Aboriginal tribes) the emu-feather shoes worn by the kurdaitcha on his mission so that his footsteps may not be traced
- lake havasu city — a city in W central Arizona.
- laughing jackass — kookaburra.
- luck of the draw — the force that seems to operate for good or ill in a person's life, as in shaping circumstances, events, or opportunities: With my luck I'll probably get pneumonia.
- lumberjack shirt — a thick checked shirt, as worn by lumberjacks
- mad-dog skullcap — a North American skullcap, Scutellaria lateriflora, having underground stems and one-sided clusters of blue to white flowers.
- magnetic pick-up — a type of record player pick-up in which the stylus moves an iron core in a coil, causing a changing magnetic field that produces the current
- nassella tussock — type of tussock grass
- near the knuckle — risqué
- nubuck (leather) — tanned leather similar to suede, but with the nap on the grain side
- nutcracker suite — a ballet and concert suite (1892) arranged by Peter Ilyich Tchaikovsky from his orchestral work for a ballet, The Nutcracker.
- oak leaf cluster — a U.S. military decoration in the form of a small bronze twig bearing four oak leaves and three acorns, worn on the ribbon of another decoration for valor, wounds, or distinguished service to signify a second award of the same medal.
- ocellated turkey — a wild turkey, Agriocharis ocellata, of Yucatán, Belize, and Guatemala, typically having green, blue, reddish-brown, and yellowish-brown plumage of a metallic luster and eyelike spots on the tail.
- punctuation mark — any of a group of conventional marks or characters used in punctuation, as the period, comma, semicolon, question mark, or dash.
- put a sock in it — be quiet!
- quick as a flash — If you say that someone reacts to something quick as a flash, you mean that they react to it extremely quickly.
- river carpsucker — a carpsucker, Carpiodes carpio, found in silty rivers of the central U.S. south to Mexico.
- round lake beach — a town in NE Illinois.
- run the blockade — to go past or through a blockade
- security blanket — a blanket or other familiar item carried especially by a young child to provide reassurance and a feeling of psychological security.
- shakedown cruise — extortion, as by blackmail or threats of violence.
- stick out a mile — to be extremely obvious
- take the biscuit — Take the biscuit means the same as take the cake.
- thumbnail sketch — small preliminary drawing
- to pass the buck — If you pass the buck, you refuse to accept responsibility for something, and say that someone else is responsible.
- trucking company — a company that transports goods by lorry
- unfranked income — any income from an investment that does not qualify as franked investment income
- upside-down cake — a cake that is baked on a layer of fruit, then turned before serving so that the fruit is on top.