2 If a sign goes up, it is fixed into position. -- (告示牌等)被豎立;(公告等)被張貼
4 If you go up to a college or university, especially Oxford University or Cambridge University, you begin studying there, or continue studying after a holiday. -- 上大學;(假期結束後)返回大學(尤指牛津大學或劍橋大學)
Train fares are going up again.
The curtain went up on another performance.
The area has recently become very fashionable and house prices are going up.