rfx is a valid English word

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

Meanings

Noun (COUNTABLE)

(genetics biochemistry) Abbreviation of: regulatory factor X. (a gene and protein family)
(security policing) Abbreviation of: recognition of firearms and explosives. (a skill and qualification)

rfx is not a Scrabble valid word

r1f4x8

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

rfx is not an iScramble, QuickWords valid word

r1f2x3

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

Same letters words (Anagrams)

• XRF

Same letters plus one

• FREX
• FRIX
• RFXS
• TXRF
• XFER
• XSRF

Same letters minus one

• FR
• FX
• RF
• RX
• XF
• XR