牵头

牵头	qiān tóu	to lead (an animal by the head) / to take the lead / to coordinate (a combined operation) / to mediate / a go-between (e.g. marriage broker)
牵	qiān	to lead along / to pull (an animal on a tether) / (bound form) to involve / to draw in
头	tóu	head / hair style / the top / end / beginning or end / a stub / remnant / chief / boss / side / aspect / first / leading / classifier for pigs or livestock / CL:个
头	tou	suffix for nouns