Tonle Sap
geographical name
Ton·le Sap ˌtän-ˌlā-ˈsap 
variants or French Grand Lac
gräⁿ-ˈläk
lake 87 miles (140 kilometers) long in western Cambodia
- on a plate
- on a platter
- on a power trip
- on a roll
- on a rotating basis
- on a scale of
- on a shoestring budget
- on a small budget
- on a small/tight/shoestring budget
- on a sour note
- on a sudden
- on a suddenty
- on a tear
- on a tight budget
- on a trial basis
- on a whim
- on a wing and a prayer
- on a/the downswing
- on a/the knife-edge
- on about
- on account
- on account of
- on aggregate
- on air
- on all counts