yapper is a valid English word

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

Meanings

Noun (COUNTABLE)

(slang) One's mouth, especially of a gossipy person.
• Shut your yapper or I'll shut it for you!
One who yaps.
(slang) A dog, especially of a small breed.

yapper is a Scrabble valid word

y4a1p3p3e1r1

• International English (Sowpods) - The word is valid in Scrabble ✔
• US English (TWL06) - The word is valid in Scrabble ✔
• 13 points

yapper is an iScramble, QuickWords valid word

y1a2p3p4e5r6

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

Same letters words (Anagrams)

• PAPERY
• PREPAY

Same letters plus one

• FAPPERY
• MAPPERY
• PREPAYS
• PREPLAY
• REAPPLY
• YAPPERS
• YAPPIER

Same letters minus one

• APERY
• PAPER
• PAPYR
• PAYER
• PEARY
• PRAYE
• PYPER
• RAPEY
• RAPPE
• REPAY