1. (of circumstances) tending to constrict freedom
   - constricting, narrowing 
2. Restricting the scope or freedom of action
   - confining, constraining, limiting, restricting

See also: narrow, restrictive

• ochreous
• Ochroma
• Ochroma lagopus
• ochronosis
• Ochs
• Ocimum
• Ocimum basilicum
• ocker
• Ockham
• Ockham's Razor
• oconee bells
• ocotillo
• OCR
• oct-
• octa-
• octad
• octadecanoic acid
• octagon
• octagonal
• octahedral
• octahedron
• octal
• octal digit
• octal notation
• octal number system