countersign is a valid English word

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

Meanings

Noun (COUNTABLE)

(law) A second signature added to a document to affirm the validity of the signature of the first person.
The response to a sign or signal.
• Only those who give the countersign may enter the Masonic Lodge.

Verb

(transitive) To sign on the opposite side of (a document).
(transitive by extension) To add a second signature to a document, affirming the validity of the signature of another person.

countersign is a Scrabble valid word

c3o1u1n1t1e1r1s1i1g2n1

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

countersign is an iScramble, QuickWords valid word

c1o2u3n4t5e6r7s8i9g10n11

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

Same letters words (Anagrams)

• COUNTERSING
• RECOUNTINGS

Same letters plus one

• CONSIGNATURE
• COUNTERSIGNS
• COUNTERSINGS
• COUNTERSTING
• COUNTERSUING
• COUNTERSWING
• DECONSTRUING
• RECONSTRUING
• RECONSULTING

Same letters minus one

• CENTURIONS
• CONSTERING
• CONSTRINGE
• CONSTRUING
• CONTINUERS
• COUNTERING
• CURINGTONS
• ENCRUSTING
• INCOUNTERS
• NEUTRONICS
• RECOUNTING
• RUSCOGENIN
• TROUNCINGS