to blow out: to explode, to go flat (for tires); to extinguish by blowing Examples of TO BLOW OUT The front tires blew out as the plane landed at Tampa International Airport. Blow out all candles when you leave the room or go to bed.

to look at: give one’s attention to; to watch Examples of LOOK AT “Roll up your sleeve,” the doctor said. “I’ll need to look at your arm.” I went to the museum to look at the Max Ernst exhibit.

to turn on: to start or cause to function (also: to switch on) Examples of TURN ON I called building management because it wasn’t possible to turn on the ceiling fan. Do I need to turn on the television for it to record the program?

to hold up: to delay, to make late; to remain high in quality Examples of TO HOLD UP The incident also prompted a pushing match and play was held up for six minutes. We didn’t score like 130 points, 140 points, but we really held up our opponent.

over and over (again): repeatedly (also: time after time, time and again) Examples of OVER AND OVER I told you, over and over, not to call me by that nickname, and you still call me by that nickname. The monkey with the miniature cymbals banged them together over and over again.

to knock out: to make unconscious; to impress or attract greatlyThis idiom can be made into the noun from knockout for both definitions. Examples of TO KNOCK OUT The prizefighter knocked out his opponent with one punch. The stone hit her on the head and knocked her out for a few minutes.