coextension

NOUN /,koʊɪk'stɛnʃən/
11 LETTERS · 4 SYLLABLES · STARTS WITH C

coextension is a valid 11-letter word worth 20 points in Scrabble and 23 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
C3O1E1X8T1E1N1S1I1O1N1
3 + 1 + 1 + 8 + 1 + 1 + 1 + 1 + 1 + 1 + 1 =20 PTS
DOUBLE WORD → 40TRIPLE WORD → 60
MEANING

What does coextension mean?

NOUN · 1 SENSE
1

Equality of extension or duration.