English UsageComparison guide
Device vs. Devise
In ordinary general English, “device” is mainly a noun for an object, mechanism, method, or contrivance. “Devise” is mainly a verb meaning to plan or invent.
Use “device” for a thing or method; use “devise” for the action of planning or inventing.
Key details
Device Corenoun: object, mechanism, method, or contrivance
Devise Coreverb: plan or invent
Termsdevice, devise
Further guidance
Core difference
Device is normally the noun; devise is normally the verb in everyday use.
Fast Test
If “thing/method” fits, device. If “invent/plan” fits, devise.
Usage Boundary
Specialized legal English also has noun/verb senses of “devise”; this guide covers ordinary general usage.
Sources and evidence
Sources are shown with the role they play in this guide. Historical or style-sensitive claims are kept within the evidence boundary described above.
- Device — Cambridge Dictionary (opens in a new tab)Cambridge University Press · Meaning of device as an object, mechanism, or method
- Devise — Cambridge Dictionary (opens in a new tab)Cambridge University Press · Meaning of devise as plan or invent