to burn down: to burn slowly, but completely (usually said of candles); todestroy completely by fire Example of TO BURN DOWN The fire was able to burn down the house very quickly. After two days of the city burning down it began to rain and doused the remaining fire.

to stand up for: to insist on, to demand; to defend, to support Examples of TO STAND UP FOR Encouraging people to think, and to stand up for what they believe, is terrific. Those men, while misguided on some fronts stood up for what they felt was right.  

to look for: to try to find, to search for Examples of LOOK FOR If you’re playing poker, you need to look for very subtle cues from the other players. My landlord told me to look for a package at the front door.

never mind: don’t be concerned about it; ignore what was just said Examples of NEVER MIND “Just never mind!” mom snapped, when I wouldn’t stop asking her questions. Everything will be fine, so just never mind the people who are criticizing you now.

to fool around: to waste time (also: to screw around); to joke, not to be serious Examples of TO FOOL AROUND – The problem doesn’t seem to be that participants are bored and fooling around.– I’ve been fooling around with the 5mx and find it a generally agreeable machine.

a bitter pill to swallow: unpleasant, but has to be acceptedExamples: Losing my job was initially a bitter pill to swallow. It’s a bitter pill to swallow but a difficult cure promises the best result.