This is the 1062nd most frequent Russian word.
отправить
To send.
Here 'отправить' is used in the context of sending mail or a package.
Я хочу отправить этот пакет в Москву.
I want to send this package to Moscow.
In this sentence, 'отправила' (a past tense form of 'отправить') is used to describe the act of sending an electronic message.
Она отправила мне сообщение вчера.
She sent me a message yesterday.
In this context, 'отправляем' (a present tense form of 'отправить') indicates the act of submitting or sending documents for a specific purpose.