Answer:
シ Katakana "Shi" or The "Sanzui" radical - water
言 GEN, GON, i(u), koto - say, speech
子 SHI, SU, ko - child
支 SHI, sasa(eru) - branch, support
雨 U, ame - rain
替 TAI, ka(eru), ka(waru) - change, replace
川 The "Sanbongawa" radical - river
レ Katakana "Re"
山 SAN, yama - mountain
相 SOU, SHOU, ai - aspect, minister, partner
Pair them like this: シ+替 子+レ 雨+相 言+川 山+支
潜 SEN, mogu(ru), hiso(mu) - dive, hide, lurk, crawl into
孔 KOU - hole, Confucius
霜 SOU, shimo - frost
訓 KUN - Japanese reading, teaching
岐 KI - forked road