godan verb (-su), transitive verb
cover with paint; hide by painting over; conceal with makeup
Used for covering something up by applying paint, ink, or makeup so that it is no longer visible. Often implies deliberate concealment.
壁の落書きを白いペンキで塗り隠した。
I covered the graffiti on the wall with white paint.
彼女はファンデーションでそばかすを塗り
She concealed her freckles with foundation.