覆う
おおう · oou · JLPT N3 · verb-godan
to cover
🙈 oou sounds like Ooh! — the gasp you make while covering your eyes
The top of 覆 is 襾, a radical meaning a lid or cover placed over something. Link the sound to a startled Ooh! as you cover or hide your face: 覆う (oou) means to cover, hide or conceal.