危坐[kiza] sitting up straight
胡坐[agura] sitting cross-legged (i.e. Indian style)
胡坐をかく[agurawokaku] to sit cross-legged
坐り込む[suwarikomu] to sit down (and bask)
坐る[suwaru] to sit

坐禅[zazen] zazen (seated Zen meditation, usu. in a cross-legged position)
坐蒲団[zabuton] zabuton (flat floor cushion used when sitting or kneeling; usu. rectangular)
坐敷[zashiki] tatami room
坐薬[zayaku] suppository
単坐機[tanzaki] single-seated plane

暗礁[anshou] reef
環礁[kanshou] atoll
岩礁[ganshou] reef
サンゴ礁[sangoshou] coral reef
離礁[rishou] refloat

堡礁[hoshou] barrier reef
坐礁[zashou] running aground
漁礁[gyoshou] fish reef
暗礁に乗り上げる[anshouninoriageru] to run aground