What is the correct spelling for IOTRRS?

If you meant to type "iotrrs" but it was a misspelling, here are a few potential correct suggestions. "Riots" refers to violent public disturbances. "Trios" denotes a group of three individuals. "Roost" signifies a bird's resting place. "Trio" refers to a composition for three voices or instruments. "Sort" means to arrange or categorize.