inter-service support

NOUN
21 LETTERS · STARTS WITH I

inter-service support is a valid 21-letter word worth 28 points in Scrabble and 34 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
I1N1T1E1R1-0S1E1R1V4I1C3E1S1U1P3P3O1R1T1
1 + 1 + 1 + 1 + 1 + 0 + 1 + 1 + 1 + 4 + 1 + 3 + 1 + 0 + 1 + 1 + 3 + 3 + 1 + 1 + 1 =28 PTS
DOUBLE WORD → 56TRIPLE WORD → 84
MEANING

What does inter-service support mean?

NOUN · 1 SENSE
1

Action by one military service to provide logistic (or administrative) support to another military service.