k2
+ an antihemorrhagic, vitamin K
+ 1939, Dam, Doisy, and vitamin K
+ a toy, kaleidoscope
+ 1817, Brewster and the kaleidoscope
+ a Japanese suicide bomber, kamikaze
+ kangaroo
+ Australia and kangaroos
+ kilobytes, KB
+ 1024 bytes, a KB
+ 6.5 full pages of 11 pt English text, 30 KB
+ on an even keel
- the ideation of a hoarder; to keep, keep, keep
+ a fuel oil, kerosene
+ 1853, Gesner and kerosene
+ French fries and ketchup
+ a stronger-than-steel polymer, Kevlar
+ 1964, Kwolek and Kevlar
+ under lock and key
+ golden key
+ master key
+ to cut keys
+ a bunch of keys
- the secret police of the USSR, KGB
- 1954-1991, USSR and the KGB
+ frog kick
+ penalty kick
+ Nanny-goat and kids
- the ideation of a killer; to kill, kill, kill
- with intent to kill
- a coldblooded killer
- mercy killing
+ KB, kilobytes
+ km, kilometer
+ next of kin
+ kindergarten
+ 1840, Froebel and kindergarten
+ was motivated by kindness
+ to show us much kindness
+ repaid kindness with kindness
+ the animal kingdom
+ the plant kingdom
+ Great Britain and Northern Ireland; United Kingdom
+ UK, United Kingdom
+ the emblem of kingship
+ stole a kiss
+ a deep kiss, French kiss
+ a first-aid kit
+ kite
+ c. 470 BC-c. 391 BC, Mozi, Lu, and the kite
+ tabby-cat and kittens
+ a fictional character, Hello Kitty
+ 1974, Yuko and Hello Kitty
+ a bird with a long bill, kiwi
+ New Zealand and kiwis
- 1865, Ku Klux Klan, KKK
- a secret society of white nationalism, KKK
- KKK, Ku Klux Klan
+ kilometer, km
+ to sit on my knee
- knock knees
+ to fall on my knees
+ to fall to my knees
+ Swiss Army Knife
+ 1891, Elsener and the Swiss Army Knife
+ palette knife
+ putty knife
+ a serrated knife, steak knife
+ to go under the knife
+ double knit
+ opportunity knocks
+ to cut the Gordian knot
- granny knot
+ love knot
- square knot
+ I know
+ to absorb knowledge
+ common knowledge
+ extensive knowledge
+ general knowledge
- superficial knowledge
+ working knowledge
+ represented by a, b, c; the knowns
+ God knows
- goodness knows
- brass knuckles
+ a multi-colored pond fish, koi
+ 1820s, Jap. and koi
+ Little Hong Kong
+ a long way to Hong Kong
+ the sacred book of the Muslims, Koran
+ the government of the USSR, the Kremlin
+ Rice Krispies
+ 1928, Kellogg and Rice Krispies