To improve.
To surpass in excellence; to exceed; to excel.
To give advantage to; to support; to advance the interest of.
Had better.
To become better; to improve.
An entity, usually animate, deemed superior to another; one who has a claim to precedence; a superior.
Greater in amount or quantity
Greater or lesser (whichever is seen as more advantageous), in reference to value, distance, time, etc.
Had better.
To come in handy for someone in the aftertime.