interplanetary space

NOUN /,ɪntər'plænɪ,tɛri_speɪc/
20 LETTERS · STARTS WITH I

interplanetary space is a valid 20-letter word worth 28 points in Scrabble and 33 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
I1N1T1E1R1P3L1A1N1E1T1A1R1Y4S1P3A1C3E1
1 + 1 + 1 + 1 + 1 + 3 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 4 + 0 + 1 + 3 + 1 + 3 + 1 =28 PTS
DOUBLE WORD → 56TRIPLE WORD → 84
MEANING

What does interplanetary space mean?

NOUN · 1 SENSE
1

The part of outer space within the solar system.

BROADER