Here’s a great blog post about the well-known Marian Antiphons sung at the end of Compline (and sometimes on other occasions). This particular post focuses on Ave, Regina Caelorum. Here’s a translation from the site, different from the usual English version:
Hail, queen of heaven, hail lady of the angels. Hail, root, hail the door through which the Light of the world is risen. Rejoice, glorious Virgin, beautiful above all. Hail, O very fair one, and plead for us to Christ.