囲い[kakoi] enclosure
囲う[kakou] to enclose
囲み記事[kakomikiji] (newspaper) column
囲む[kakomu] to surround
囲碁[igo] Go (board game of capturing territory)

囲炉裡[irori] sunken hearth
囲にょう[inyou] surrounding
胸囲[kyoui] chest measurement
交際範囲[kousaihani] circle of acquaintance
広範囲[kouhani] extensive

データの先頭[deetanosentou] beginning of data
一頭[ittou] one large animal (horses, cattle, etc.)
一頭立て[ittoudate] one-horse (carriage)
咽頭[intou] pharynx
駅頭[ekitou] station

音頭[ondo] leading a group of people
会頭[kaitou] society president
街頭[gaitou] in the street
核弾頭[kakudantou] nuclear warhead
巻頭[kantou] opening page of book