WordWeb Online

1. An arm of a sea or ocean partly enclosed by land; larger than a bay
    
2. An unbridgeable disparity (as from a failure of understanding)
   "he felt a gulf between himself and his former friends";
   - disconnect, disconnection, disconnexion [Brit]
    
3. A deep wide chasm

Derived forms: gulfs

Type of: body of water, chasm, disparity, water

Part of: sea

Encyclopedia: Gulf, Mobile & Northern Railroad