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Related to miss out: vindication
miss out (on something)and lose out (on something)
to fail to participate in something; to fail to take part in something. I'm sorry I missed out on the ice cream. I lost out on getting in the class photo because I was sick that day.
To be unable or fail to participate in something: I missed out on last month's concert because I was out of town. There's a lot going on at the fair, so set aside the whole day or you'll miss out!