1. a large motor vehicle designed to carry many passengers; a bus
Usage: chiefly British
2. a volume containing several works previously published separately
3. a legislative bill dealing with various unrelated matters
Usage: legislative

1. containing or dealing with many items at once

Examples

• The red double-decker omnibus stopped at the corner.
• She bought an omnibus edition of Shakespeare’s plays.
• The omnibus bill included funding for roads, schools, and parks.
• The professor assigned an omnibus reading list covering multiple topics.
• An omnibus survey asked questions about various social issues.
• The omnibus legislation addressed both tax reform and healthcare.