In many cases, advisers may be a student's lifeline.

Learn all that you can while you are here; take in all of the experiences that campus has to offer. That's your life going by -- don't miss it.

a lifeline to terrorists.

The condition of job-seekers is like that of beggars who can't be choosers, so don't buy the empty words of mere advisers.

The bridge was our lifeline to the other side.

Obviously it's a nice little lifeline,