Vocabulary consisting only from characters you are able to read

kanji kana meaning randomReload
二人 ふたり two persons, two people, pair, couplejlpt5
さん (num) threejlpt5, mix
水力 すいりょく hydraulic power, water powermix
人口 じんこう populationjlpt4, leda1
くち mouth, orifice, openinghito, jlpt5
山々 やまやま mountainsshizen
三つ みっつ threejlpt5
一つ ひとつ onejlpt5
とお 10, tenjlpt5
(num) twojlpt5