To scoff at or ridicule someone; to laugh at or make fun of another in a disdainful way.
彼は人の意見をすぐに嘲るから、議論が続かない。
He immediately mocks others' opinions, so discussions don't continue.
失敗した同僚を嘲るのではなく、励ますべきだ。
Instead of ridiculing a colleague who failed, you should encourage them.
ネット上で匿名のユーザーに嘲られて傷ついた。
I was hurt by being ridiculed by anonymous users online.