responder is a valid English word

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

Meanings

Noun (COUNTABLE)

One who responds.
A person who responds to an emergency situation or other summons.
• 911 responders arrived at the scene within five minutes after the call.

responder is a Scrabble valid word

r1e1s1p3o1n1d2e1r1

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

responder is an iScramble, QuickWords valid word

r1e2s3p4o5n6d7e8r9

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

Same letters words (Anagrams)

• PONDERERS
• REPONDERS

Same letters plus one

• PORTENDERS
• PREPONDERS
• PROVENDERS
• RESPONDERS

Same letters minus one

• DEPERSON
• DEPONERS
• DOERNERS
• ENDORSER
• PEDERSON
• PEDREROS
• PERSONED
• PONDERER
• REPONDER