What is the longest word you can make out of happy easter
Actually typewriter is not THE longest word, but it is tied for the longest word that can be spelled on one row of keys
Teeter totter with a hyphen in between
Typewriter is the word which can be typed on home row keys on a keyboard
I'm not sure what you mean by the home row of keys, but 'typewriter' is the longest word you can type with the first row of letters on your keyboard.
The longest word you can type on the top row on a keyboard is teeter totter