Stationary vs. Stationery
“Stationary” is an adjective meaning not moving or not changing; “stationery” is an uncountable noun for writing materials such as paper, pens, pencils, and envelopes. Their pronunciations are effectively the same in the cited dictionary entries, so meaning is the reliable distinction.
Use “stationary” for something not moving or not changing: “a stationary car.” Use “stationery” for writing materials: “office stationery.” The final -ary form describes stillness; the -ery form names paper and writing supplies.
Key details
Choose the right form
| Meaning / role | Choose | Decision |
|---|---|---|
| not moving | stationary | Use the adjective. |
| not changing | stationary | The adjective also covers this sense. |
| writing materials such as paper, pens, pencils, or envelopes | stationery | Use the uncountable noun. |
Quick tests
Meaning and word-class test
Does the word describe something as still or unchanged?
If yes: Use “stationary.”
If no: If you mean writing materials, use “stationery.”
Caveat: The words sound alike in the cited dictionary entries, so pronunciation is not a dependable spelling test.
Examples
The bicycle remained stationary at the light.
“Stationary” is the adjective for something not moving.
The rate stayed stationary throughout the period.
“Stationary” can also mean not changing.
The office ordered new stationery for the reception desk.
“Stationery” names writing materials.
Usage notes
Further guidance
Meaning Test
Movement/state versus writing supplies cleanly separates the two in ordinary usage.
Sound Warning
Because the dictionary pronunciations are the same in ordinary UK/US transcription, sound alone is not a useful spelling test.
Stationary
Cambridge defines “stationary” as an adjective meaning not moving or not changing.
Stationery
Cambridge defines “stationery” as an uncountable noun for materials needed for writing, including paper, pens, pencils, and envelopes.
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.
- STATIONARY definition (opens in a new tab)Cambridge Dictionary · Meaning and word class of stationary
- STATIONERY definition (opens in a new tab)Cambridge Dictionary · Meaning and word class of stationery