Waiting for you (three words)
The 13 letters RGAOIWUOTFINY do not spell a word. They spell the phrase "waiting for you" (among others of less grammatical sense). The longest single word is "figuration."
Oratory.
lovebird
Aeries. Easier.
Those letters can be used to spell "piracy".
Those letters can be used to spell "cuisine".
Waiting for you
As many as are requireed to make a legitimate word.
The word bucket can be made, and bucket is a noun.
EMERALDS
job jot to OJ (orange juice) Jo
The letters tahberd make the word breadth.