Hook up and Keep in line

Hook up verb - To come or be together as friends.

Keep in line and hook up are semantically related. In some cases you can use "Keep in line" instead a verb "Hook up".

Keep in line verb - Control (others or oneself) or influence skillfully, usually to one's advantage.

Hook up and keep in line are semantically related. Sometimes you can use "Hook up" instead a verb phrase "Keep in line".