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to go out (e.g. on an excursion or outing); to leave; to depart; to start; to set out
to be about to leave; to be just going out
天気がいいので公園へ出掛ける。
The weather is nice, so I'm heading out to the park.
日曜日に家族で海へ出掛けた。
On Sunday, the family went out to the beach.
母は買い物に出掛けている。
My mother is out shopping.