cupper is a valid English word

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

Meanings

Noun (COUNTABLE)

(in combination) Someone with a specific bra size.
• She is a C-cupper.
(slang) A coffee aficionado.
(obsolete) A cupbearer.

cupper is a Scrabble valid word

cupper

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

cupper is not an iScramble, QuickWords valid word

cupper

• The word is not valid in iScramble ✘
• The word is not valid in QuickWords ✘
• 00 points

Same letters words (Anagrams)

• none

Same letters plus one

• CRUPPER
• CUPPERS
• PRECOUP
• PREPUCE
• SCUPPER
• UPCREEP
• UPCREPT

Same letters minus one

• PRUCE
• PUCER
• RECUP
• RUPPE
• UPPER