To do something simultaneously; to happen at the same time.
[The pagsi--un focuses on two or more people doing s.t. at the same time. The -an imp. focuses on one party making sure it does s.t. at the same time as another party.]
We arrived at the well at the same time.
If you are fond of making trouble, and it happens to be at the time when I'm irritated, you will surely be hurting.
If my girlfriend is fond of going to Tana" Makket, I should make sure that I am there at the same time as her.
Go to that boss's office at the same time he goes to the office if you want to seek employment.