1. forward movement or progress
Usage: plural of headway
2. time intervals between consecutive vehicles on the same route
Usage: transportation planning
3. clear vertical space above something
Usage: engineering; architecture

Examples

• The students made significant headways in their math skills this semester.
• The construction project showed steady headways despite the weather delays.
• Bus headways during rush hour are typically five minutes.
• The subway system reduced headways to improve passenger flow.
• Engineers calculated the required headways under each bridge.
• The tunnel had insufficient headways for large trucks.
• Multiple headways were achieved in the research project this year.