Is “Extinguish” a Scrabble word?
Yes
EXTINGUISH
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Extinguish
/ɪkˈstɪŋ.ɡwɪʃ/
verb
1.To put out, as in fire; to end burning; to quench
2.To destroy or abolish something
“She extinguished all my hopes.”
3.To obscure or eclipse something
“The rays of the sun were extinguished by the thunder clouds.”
Synonyms: douse, put out, quench