感嘆[kantan] admiration
感嘆符[kantanfu] exclamation point
驚嘆[kyoutan] wonder
嘆かわしい[nagekawashii] sad
嘆き[nageki] grief

嘆き悲しむ[nagekikanashimu] to grieve and moan
嘆く[nageku] to sigh
嘆願[tangan] entreaty
嘆声[tansei] sigh (of admiration or lamentation)
嘆息[tansoku] sigh