interval training

17 LETTERS · STARTS WITH I

interval training is a valid 17-letter word worth 20 points in Scrabble and 26 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

I1N1T1E1R1V4A1L1T1R1A1I1N1I1N1G2

1 + 1 + 1 + 1 + 1 + 4 + 1 + 1 + 0 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 2 =20 PTS

DOUBLE WORD → 40TRIPLE WORD → 60

MEANING

What does interval training mean?