数:

吸う: breathe, inhale, suck

数字: numbers / 数次: number of times

水筒: canteen / 水痘: varicella / 水套: water jacket / 水稲: grain grown in a paddy field / 水頭: by the water / 水頭: energy represented by a column of water / 出納: adding and removal of money and goods

水位: water level / 推移: transition

推移: to undergo a change

馬鈴薯: potato (Solanum tuberosum)

deuterium; heavy hydrogen

接助: conjunctive particle; abbreviation of 接続助詞 / 切除: cut off, cut out, ablation

The hiragana syllable でょ (dyo). Its equivalent in katakana is デョ (dyo).