知る
しる · shiru · JLPT N5 · verb-godan
to understand
📖 shiru sounds like 'she knew' — she knew, so she knows
Shiru is close to English she-ru; link it to she knew. The kanji 知 = arrow 矢 + mouth 口: knowledge spoken as fast and straight as an arrow. 知 also appears in 知識 (chishiki, knowledge).