Constant vs. permanent: what’s the difference?
The short answer
Constant refers to something that is continuous or occurring repeatedly over time, while permanent indicates something meant to last indefinitely or forever without change.
What they have in common
Both words describe something that endures over time and does not change easily.
Examples
constant
- The constant noise from the construction site was irritating.
- Her constant support helped me get through tough times.
- The engine maintained a constant speed throughout the journey.
permanent
- He made a permanent move to a new city for his job.
- The tattoo is a permanent mark on her skin.
- The company is still searching for a permanent solution to the issue.
Which one is more common?

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