stiff is a valid English word

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

Meanings

Adjective (COMPARABLE)

(of an object) Rigid; hard to bend; inflexible.
(figurative of policies and rules and their application and enforcement) Inflexible; rigid.
(of a person) Formal in behavior; unrelaxed.

Noun (COUNTABLE AND UNCOUNTABLE)

(slang chiefly North America) An average person, usually male, of no particular distinction, skill, or education.
• working stiff
(slang) A person who is deceived, as a mark or pigeon in a swindle.
• She convinced the stiff to go to her hotel room, where her henchman was waiting to rob him.
(slang) A cadaver; a dead person.
• Synonym: Thesaurus:corpse, Thesaurus:body

Verb

To fail to pay that which one owes (implicitly or explicitly) to another, especially by departing hastily.
• Realizing he had forgotten his wallet, he stiffed the taxi driver when the cab stopped for a red light.
To cheat someone
To tip ungenerously.

Adverb (COMPARABLE)

(nautical) Of the wind, with great force; strongly.

stiff is a Scrabble valid word

stiff

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

stiff is an iScramble, QuickWords valid word

stiff

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

Same letters words (Anagrams)

• TIFFS

Same letters plus one

• FIFTHS
• SOFFIT
• STEFFI
• STIFFS
• STIFFY
• TIFFTS

Same letters minus one

• FFIS
• FFTS
• FIFT
• FIST
• FITS
• ITFS
• SIFT
• STFF
• TIFF
• TIFS