ichidan verb, transitive verb
steal a glance; look furtively; take a peek
Implies secretly looking at something one is not supposed to see, often with a sense of guilt or stealth.
彼は隣の人の答案を盗み見た。
He stole a glance at his neighbor's answer sheet.
カーテンの隙間から外を盗み見る。
I peek outside through a gap in the curtains.