To restrict or restrain.
To hold back; to refuse to give or share.
To prevent (a pupil) from advancing in a course.
To stay back; to refrain from approaching.
To encourage, urge or incite.
To increase the activity of (a catalyst) by changing its surface structure.
To elevate to a higher league.
To raise (someone) to a more important, responsible, or remunerative job or rank.
To move on to a subsequent stage of education.
To advocate or urge on behalf of (something or someone); to attempt to popularize or sell by means of advertising or publicity.
To exchange (a pawn) for a queen or other piece when it reaches the eighth rank.