celerity

NOUN /sə'lɛrɪti/
8 LETTERS · 4 SYLLABLES · STARTS WITH C

celerity is a valid 8-letter word worth 13 points in Scrabble and 14 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
C3E1L1E1R1I1T1Y4
3 + 1 + 1 + 1 + 1 + 1 + 1 + 4 =13 PTS
DOUBLE WORD → 26TRIPLE WORD → 39
MEANING

What does celerity mean?