its rupturewort (an herb) with 11 letters.
it's not teeter-totter because it is spelled with a hyphen so it doesn't count (because a hyphen is not on the top row) and its not typewriter, that has only 10 letters.
The longest word you can type using only the top row of keys is typewriter
Typewriter
typewriter
The longest words which can be typed on a QWERTY keyboard's home row are the following, which all have eight letters:alfalfashadassahflagfallgalagalagalahadshaskalahInterestingly, one of the longest words which can be typed on the top row is "typewriter."
Ironically ... it's 'typewriter'
The letters from the top row of the keyboard are Q W E R T Y U I O and P, so the word that can be formed using those letters (and repeating a couple) is typewriter.More Answer...From the letters on the top row of a keyboard you can also type PEPPERROOT, PEPPERWORT, PERPETUITY, PEWTERWORT, PIROUETTER, PREREQUIRE, PRETORTURE, PROPRIETOR, REPERTOIRE, REPETITORY, TETTERWORT. If you'd like a 12 letter word with a hyphen, then TEETER-TOTTER.
proprietor
The longest common English word you can make from the top line of your keyboard or qwertyuiop is typewriter (10 letters).The longest possible word is rupturewort, a type of plant (11 letters).The longest slang word using all letters only once is wipeout (7 letters). The longest formal words have six letters : equity, poetry, purity, pyrite, torque, troupe and qwerty (it means the kind of keyboard we are now using).
Typewriter
It is hard to know the longest word in a category, since there may be specialized fields (such as medicine) with longer words that most people do not know. Antidisestablishmentarianism is a very long word which might be the longest.
You have to click on the camra on the botom row in the middle and pick a picture after that you can type in a little box on top of the screen.
Typewriter.