one after another

ADVERB
17 LETTERS · STARTS WITH O

one after another is a valid 17-letter word worth 21 points in Scrabble and 22 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
O1N1E1A1F4T1E1R1A1N1O1T1H4E1R1
1 + 1 + 1 + 0 + 1 + 4 + 1 + 1 + 1 + 0 + 1 + 1 + 1 + 1 + 4 + 1 + 1 =21 PTS
DOUBLE WORD → 42TRIPLE WORD → 63
MEANING

What does one after another mean?

ADVERB · 1 SENSE
1

Following one another in quick succession.