You may say 'mizu.'
mizu
みず
水
It rhymes with 'me, too'.
mizutenshi
'Mizu no oujo'.
Another time waster.
水の犬 (mizu no inu)
we say Nakagawa if we want to say inside in Japanese.
mizutenshi
Gama
'Mizu no oujo'.
流水 Ryūsui
"Unagi" is a water serpent, or eel
You may say 'mizu ga suki desu.'
Another time waster.
aqua is mizu-iro(=color); water
water = Mizu, Moon = Tsugi, Wolf = Ookami
Note* there is not exact was but saying "Sinku" as a English-Japanese term Rather say "in water" 水中で (suichu de)
青い水 aoi mizu.
凍結水 Tōketsu-sui