Chili
carriage
ceasechimechivechokechosechuteclosecremecrimecrazecursecurvecycle
Carissa, Charles, Cameron, Camilla
Canasta
Chili
brazil
The longest word starting with c is counterproductiveness with twentyone letters crystallographically has twenty letters
carriage
choice
canoe
capo
Cato
ceasechimechivechokechosechuteclosecremecrimecrazecursecurvecycle
chromolithographer (18 letters) counterdemonstrator (19 letters)
The word is center.
considerable