Prepositional Phrases ON in English

on watch
on schedule
on the record
on the road
on oath
on pain of
on the air
on balance
on a diet
on a journey
on a trip
on a large scale
on patrol
on principle
on purpose
on reflection
on remand
on sale
on second thoughts
on show
on strike
on suspicion of
on the agenda
on the assumption
on the brink of
on the dot
on the edge of
on the eve of
on the grounds of
on the horizon
on the hour
on the increase
on the job
on the move
on the off-chance
on the outskirts
on the part of
on the phone
on the point of
on the run
on the strength of
on the stroke of
on the tip of
on the top of
on the understanding that
on the verge of
on the way to
on time
on tiptoe
on trial
on vacation
on a small scale
on a pension
on a regular basis
on a spree
on account of
on an expedition
on an island
on approval
on average
on bail
on behalf of
on board
on business
on condition that
on credit
on display
on edge
on end
on file
on fire
on foot
on good terms
on guard
on hand
on horseback
on impulse
on leave
on loan
on no account
on occasion
on one’s terms
on one’s own
on one’s own initiative
on order
on paper
on parade