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head something up
1. Lit. to get something pointed in the right direction. (Especially a herd of cattle or a group of covered wagons.) Head those wagons up—we're moving out. Head up the wagons!
2. Fig. to be in charge of something; to be the head of some organization. I was asked to head the new committee up for the first year. Will you head up the committee for me?
Be in charge of, lead, as in She headed up the commission on conservation. [Colloquial; mid-1900s]