To go to meet or pick someone up (from a place where they are).
駅まで友達を迎えに行くから、出てきてね。
I'm going to the station to pick up my friend, so come out.
明日の朝、子どもを学校のバス停まで迎えに行きます。
Tomorrow morning I'll go to the school bus stop to pick up the child.
荷物が届いたら、家まで迎えに行ってもらえる？
When the package arrives, can you come pick it up at my house?