blackball is a valid English word

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

Meanings

Noun (COUNTABLE AND UNCOUNTABLE)

(countable) A rejection; a vote against admitting someone.
(countable) A black ball used to indicate such a negative vote.
• Regardless how many other people may have voted to approve a candidate for membership, a single blackball will reject the candidate.
(countable) A kind of large black sweet.
• Synonym: niggerball

Verb

(transitive) To vote against, especially in an exclusive organization.
• If you're not from a moneyed, well-connected family, you can count on getting blackballed from the fraternity.
(transitive) To ostracize.
• Synonym: blacklist, send to Coventry, Thesaurus:ignore, Thesaurus:boycott

blackball is a Scrabble valid word

blackball

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

blackball is an iScramble, QuickWords valid word

blackball

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

Same letters words (Anagrams)

• none

Same letters plus one

• BLACKBALLS

Same letters minus one

• BACKBALL
• BLACKALL