iou is a valid English word

Scrabble validity: invalid ( international - Sowpods, US - Twl06 )
iScramble validity: valid
QuickWords validity: valid

Meanings

Noun (COUNTABLE)

An informal promissory note that is not a negotiable instrument.
• When David couldn’t afford to match the money in the poker pot, he added an IOU for the remaining amount instead.

iou is not a Scrabble valid word

iou

• International English (Sowpods) - The word is not valid in Scrabble ✘
• US English (TWL06) - The word is not valid in Scrabble ✘
• 00 points

iou is an iScramble, QuickWords valid word

iou

• The word is valid in iScramble ✔
• The word is valid in QuickWords ✔
• 00 points

Same letters words (Anagrams)

• OUI

Same letters plus one

• EUOI
• IGOU
• IOUS
• LIOU
• OUID
• OUIL
• OUIS
• POUI
• TUIO
• UIKO
• UNIO
• UNOI

Same letters minus one

• IO
• IU
• OI
• OU
• UI
• UO