Note to Romeo and Juliet, 2.2.160: "Bondage is hoarse, and may not speak aloud;"

Romeo and Juliet,
Act 2, Scene 2, line 160.
Bondage: restraint. hoarse: i.e., barely able to speak aloud. Juliet is in bondage because she must keep her love of Romeo secret from her family, so she cannot raise her voice above a hoarse whisper.