up to date: modern; current, timely Examples of UP TO DATE You need to keep me up to date on how you’re doing with this project. The new computer had all the up to date software already installed.

to step down: to retire or leave a top position, to resign Examples of TO STEP DOWN Next May the principal will step down after thirty-five years of service to the school. The angry shareholders wanted the company president to step down because of the stock scandal.

to look up to: to admire, to respect greatly Examples of TO LOOK UP ON Adaptability, diversity and positive thought will lead others to look up to you. Traditionally juries love judges, because they look up to them and respect them.

to bring about: to happen Examples of TO BRING ABOUT The Internet has brought about a new age in educating people about their health. The same is true for the business transformations brought about by the Internet.  

to think over: to consider carefully before deciding Examples of THINK OVER “I’ll tell you tomorrow. I’m going to want to think over your proposal,” said the businessman to his associate. You’ll want to think over your options before picking the right college for you.

to be up: to expire, to be finishedThis idiom is used only with the word time as the subject. Examples of BE UP When the time is up, he said, they will have to move out or buy the mobile home. As soon as your time is up they sack you and get another free…