oye
/ˈoʝe/ · A1 · intj
hey! listen! (call to attract attention of a single person)
👂 oye = hear! — the tú command of oír (to hear), like English oyez
Oye is the informal singular imperative of oír, from Latin audire (audio, audience). English town criers shouted oyez, oyez — the same root via French. Said to one person; the formal form is oiga.