Of the old school
Attitudes from the past which are no longer popular.Our teacher's attitudes are of the old school and are not often found these days.
Of one’s own free will
By one's own choice.The man volunteered of his own free will.
Occur to (someone)
To come into someone's mind (an idea or thought).It occurred to me that I will not be able to meet my friend on Saturday because I have to go to... Read more →
On (someone’s) account
Because of someone.We went to the children's festival on our daughter's account.
On shaky ground
Unstable, not secure.The man's position at the company has been on shaky ground for a long time.
On second thought
After having reconsidered something.On second thought, I do not think that I will go to a movie tomorrow.
On schedule
At the expected or desired time.The train arrived on schedule and we found our friend easily.
On sale
Offered for sale at a special low price.The television set was on sale so we decided to buy it.
On purpose
Intentionally.I think that the woman spilled her drink on purpose.
On probation
Serving a period of probation, serving a trial period.The new employee was on probation before he became a regular member of the staff.