self-sustainment

16 LETTERS · 3 SYLLABLES · STARTS WITH S

self-sustainment is a valid 16-letter word worth 20 points in Scrabble and 25 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

S1E1L1F4-0S1U1S1T1A1I1N1M3E1N1T1

1 + 1 + 1 + 4 + 0 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 3 + 1 + 1 + 1 =20 PTS

DOUBLE WORD → 40TRIPLE WORD → 60

MEANING

What does self-sustainment mean?