constrain is a valid English word

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

Meanings

Verb

(transitive) To force physically, by strong persuasion or pressuring; to compel; to oblige.
(transitive) To keep within close bounds; to confine.
(transitive) To reduce a result in response to limited resources.

constrain is a Scrabble valid word

c3o1n1s1t1r1a1i1n1

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

constrain is an iScramble, QuickWords valid word

c1o2n3s4t5r6a7i8n9

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

Same letters words (Anagrams)

• CONSARNIT
• INCANTORS
• INTROSCAN
• NONRACIST
• TRANSONIC

Same letters plus one

• ANTICENSOR
• CARNATIONS
• CARSINGTON
• CONSPIRANT
• CONSTRAINS
• CONSTRAINT
• CONTAINERS
• CONTRAPSIN
• CRENATIONS
• NARCOTINES
• NONGASTRIC
• NONKARSTIC
• NONRACISTS
• RUNCATIONS
• SANCTIONER
• SCRUTONIAN
• TRANSONICS
• TRANSSONIC

Same letters minus one

• ACTINONS
• ANTICORS
• CANONIST
• CANTIONS
• CANTORIS
• CAROTINS
• CASTIRON
• CASTORIN
• CINTORAS
• CINTRONS
• CONISTRA
• CONTAINS
• CORTINAS
• CRANSTON
• CRISANTO
• INCANTOR
• NASICORN
• NICANORS
• NICASTRO
• NICATORS
• NICOTRAS
• NORICANS
• SANCTION
• SCANTRON
• SCRANTON
• SONANTIC
• TRIANONS