Head for the hills and Take off

Head for the hills verb - Flee; take to one's heels; cut and run.

Take off and head for the hills are semantically related In some cases you can use "Take off" instead a verb phrase "Head for the hills".

Take off verb - To leave a place often for another.

Head for the hills and take off are semantically related in run away topic. Sometimes you can use "Head for the hills" instead a verb "Take off".