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to trick; to cheat; to deceive; to swindle; to dupe
to coax; to wheedle; to soothe; to calm
子供を瞞すのは簡単だが良くない。
It's easy to trick kids, but it's not right.
うまい話で人を瞞す手口に注意しよう。
Watch out for tactics that deceive with too-good-to-be-true deals.
彼女は瞞されたことに気づいていない。
She hasn't realized she was deceived.