Nouns based on adjectives end with the syllable さ ("-sa"), as in "hayasa" (kanji and hiragana: 速さ, hiragana only: はやさ, meaning: speed), "takasa" (kanji and hiragana: 高さ, hiragana only: たかさ, meaning: height), and "ookisa" (kanji and hiragana: 大きさ, hiragana only: おおきさ, meaning: size/largeness).