送る (おくる) means 'to send.' It can refer to sending letters, emails, packages, or even sending someone off. The particle 'を' marks the thing being sent, and 'に' marks the destination or recipient. For instance, '手紙を送ります' (Tegami o okurimasu) means 'I send a letter.'

送(おく)る は「送(おく)る」という意(い)味(み)です。手(て)紙(がみ)や荷(に)物(もつ)などを送(おく)るときに使(つか)います。「手(て)紙(がみ)を送(おく)ります」