Florissant
geographical name
Flo·ris·sant ˈflȯr-ə-sənt 
city in eastern Missouri north-northwest of Saint Louis population 52,158
- on one's own account
- on one's own authority
- on one's own hook
- on one's own initiative
- on one's own merits
- on one's own responsibility
- on one's own terms
- on one's own time
- on one's part
- on one's plate
- on one's sleeve
- on one's tiptoes
- on one's toes
- on one's uppers
- on one's way
- on order
- on pain of
- on paper
- on par with
- on parade
- on payment of
- on percussion
- on pins and needles
- on pitch
- on point