hadda is a valid English word

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

Meanings

Contraction

(nonstandard) had to
(North America nonstandard) had (used in conditional statements; compare had've)
• If I hadda known, I wouldn't've gone.

hadda is not a Scrabble valid word

h4a1d2d2a1

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

hadda is not an iScramble, QuickWords valid word

h1a2d3d4a5

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

Same letters words (Anagrams)

• DADAH
• HADAD

Same letters plus one

• HADADA
• HADADS
• HADEDA
• MADDAH
• SHADDA
• WHADDA

Same letters minus one

• ADAD
• ADAH
• ADDA
• ADHD
• DAAD
• DADA
• HAAD
• HADA
• HADD