einstein's theory of relativity

NOUN
31 LETTERS · STARTS WITH E

einstein's theory of relativity is a valid 31-letter word worth 42 points in Scrabble and 43 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
E1I1N1S1T1E1I1N1'0S1T1H4E1O1R1Y4O1F4R1E1L1A1T1I1V4I1T1Y4
1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 0 + 1 + 0 + 1 + 4 + 1 + 1 + 1 + 4 + 0 + 1 + 4 + 0 + 1 + 1 + 1 + 1 + 1 + 1 + 4 + 1 + 1 + 4 =42 PTS
DOUBLE WORD → 84TRIPLE WORD → 126
MEANING

What does einstein's theory of relativity mean?