1. A group of people who try actively to influence legislation
   - lobby, pressure group

Type of: political entity, political unit

• orthopteran
• orthopteron
• orthopterous insect
• orthoptic
• orthoptics
• orthoptist
• orthorhombic
• orthoscope
• orthoscopic
• orthostatic
• orthostatic hypotension
• orthotics
• Orthotomus
• Orthotomus sutorius
• orthotropic
• orthotropous
• orthotropous ovule
• Ortilis vetula macalli
• ortolan
• ortolan bunting
• ortygan
• Orudis
• Orudis KT
• Orumiyeh
• Oruvail