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to call out (to); to call; to invoke
to summon (a doctor, etc.)
to invite
to designate; to name; to brand
to garner (support, etc.); to gather
駅前でタクシーを呼んだ。
I called a taxi in front of the station.
医者を呼んでください。
Please summon a doctor.
大きな声で名前を呼んでいる。
Someone is calling a name in a loud voice.