Denshi Jisho — Online Japanese dictionary

一頭 いっとう one large animal (horses, cattle, etc.); head (of cattle)
Noun 
一頭立て いっとうだて one-horse (carriage)
Expression 
一頭引き いっとうびき one-horse (carriage)
Noun 
一頭牽き いっとうびき one-horse (carriage)
Noun 
一頭地を抜く いっとうちをぬく to cut a conspicuous figure; to be by far the best
Expression, Godan verb with ku ending 

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