I entered 5 k's in the Google search box just now and this mathematical equation came up: k - k - k - k - k = -5.52259408 × 10 -23 m 2 kg s -2 K -1 Gulp. I hope it refers to something full of kindliness. Best to think that way. After all, an OK is a better thing than a KO (knock out). kind - kinder - kindest - kindly - kindness = -5.52259408 × 10 -23 m 2 kg s -2 K -1 Giggle. Keep on keeping on. Peace out. You got it. It's the letter K on ABC Wednesday . Click here to check out what bloggers around the world are writing about K. Thanks, ABCW team!