one after the other

ADVERB
19 LETTERS · STARTS WITH O

one after the other is a valid 19-letter word worth 25 points in Scrabble and 24 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
O1N1E1A1F4T1E1R1T1H4E1O1T1H4E1R1
1 + 1 + 1 + 0 + 1 + 4 + 1 + 1 + 1 + 0 + 1 + 4 + 1 + 0 + 1 + 1 + 4 + 1 + 1 =25 PTS
DOUBLE WORD → 50TRIPLE WORD → 75
MEANING

What does one after the other mean?

ADVERB · 1 SENSE
1

Following one another in quick succession.