太 TAI, TA, futo(i), futo(ru) - thick, fat
知 CHI, shi(ru) - know
州 SHUU, su - state, sandbank
天 TEN, ame, ama - heaven
止 SHI, to(meru), to(maru) - stop
They are the kanji on which the following hiragana are based.
た Hiragana "Ta"
ち Hiragana "Chi"
つ Hiragana "Tsu"
て Hiragana "Te"
と Hiragana "To"