firsthand is a valid English word

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

Meanings

Adjective (NOT COMPARABLE)

Direct, without intermediate stages.
• firsthand knowledge
Not previously owned or used; contrasted with secondhand.
• a firsthand copy

Adverb (NOT COMPARABLE)

Directly or from personal experience.

firsthand is a Scrabble valid word

f4i1r1s1t1h4a1n1d2

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

firsthand is an iScramble, QuickWords valid word

f1i2r3s4t5h6a7n8d9

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

Same letters words (Anagrams)

• none

Same letters plus one

• THREADFINS

Same letters minus one

• DARTFISH
• INDRAFTS
• STRIDHAN