This is the 8312th most frequent Russian word.
ми
"Ми" in Russian is the musical note "E."
In this sentence, 'мы' is used as the nominative plural first-person pronoun 'we', representing the speaker and others as the subject of the sentence.
Мы гуляем в парке.
We are walking in the park.
Here, 'ми' is a poetic or old-fashioned form of the instrumental plural of 'мы', often seen in literature or set phrases, meaning 'between us'.
Собака сидит между ми.
The dog is sitting between us.
In this example, 'ми' again represents a form of 'мы', used after certain prepositions with the instrumental case.