proof is a valid English word

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

Meanings

Noun (COUNTABLE AND UNCOUNTABLE)

(countable) An effort, process, or operation designed to establish or discover a fact or truth; an act of testing; a test; a trial.
(uncountable) The degree of evidence which convinces the mind of any truth or fact, and produces belief; a test by facts or arguments which induce, or tend to induce, certainty of the judgment; conclusive evidence; demonstration.
The quality or state of having been proved or tried; firmness or hardness which resists impression, or does not yield to force; impenetrability of physical bodies.

Adjective (COMPARABLE)

Used in proving or testing.
• a proof load; a proof charge
Firm or successful in resisting.
• proof against harm
(of alcoholic liquors) Being of a certain standard as to alcohol content.
• 60% proof liquor

Verb

(transitive intransitive colloquial) To proofread.
(transitive) To make resistant, especially to water.
(transitive firearms) To test-fire with a load considerably more powerful than the firearm in question's rated maximum chamber pressure, in order to establish the firearm's ability to withstand pressures well in excess of those expected in service without bursting.

proof is a Scrabble valid word

proof

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

proof is an iScramble, QuickWords valid word

proof

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

Same letters words (Anagrams)

• OPFOR

Same letters plus one

• OPFORS
• PROOFS

Same letters minus one

• FOOR
• POOF
• POOR
• PROF
• ROOF
• ROOP