若し[moshi] if
若しかしたら[moshikashitara] perhaps
若しかして[moshikashite] perhaps
若しかすると[moshikasuruto] perhaps
若い[wakai] young

若さ[wakasa] youth
若しくは[moshikuha] or
若干[jakkan] some
若死に[wakajini] premature death
若者[wakamono] young man

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