be o - bill
- be of the opinion (that)
- be of the opinion (that)
- be off with you!
- be on an even keel
- be on one's way
- be on probation
- be on tenterhooks
- be on the market
- be on the needle
- be on the offensive
- be on the point of
- be on the prowl
- be on the rampage
- be on the safe side
- be on the tip of one's tongue
- be on to (someone)
- be on to (someone)
- be one up on (a person)
- be one up on (a person)
- be out for
