急須[kyuusu] small teapot
急須の口[kyuusunokuchi] spout of a teapot
恵比須[webisu] Ebisu (god of fishing and commerce)
須臾[shuyu] little while
必須[hissu] indispensable

必須科目[hissukamoku] required subjects
須要[shuyou] absolutely necessary
白長須鯨[shironagasukujira] blue whale (Balaenoptera musculus)
必須条件[hissujouken] essential condition
長須鯨[nagasukujira] fin whale