Stationary (ending in -ary) is an adjective meaning not moving or fixed in place: the car remained stationary at the lights; a stationary bike. Stationery (ending in -ery) is a noun meaning writing materials—paper, envelopes, pens, and similar items: she bought new stationery for the office; personalised wedding stationery.
Stationary and stationery are near-homophones and differ by only one vowel in their final syllables: -a- versus -e-. Because they sound so similar when spoken quickly, even fluent writers occasionally mix them up. Understanding where each word comes from makes the distinction much easier to recall.
The Core Difference
| Word | Part of speech | Meaning | Key idea |
|---|---|---|---|
| stationary | adjective | not moving; fixed in position; unchanging | standing still |
| stationery | noun | writing materials: paper, envelopes, pens, notebooks | things sold by a stationer |
The two words share the same Latin root, stationarius, meaning “of a fixed station.” Medieval traders who sold books and writing materials from a fixed shop (rather than travelling to markets) were called stationers, and the goods they sold became known as stationery. The adjective stationary retained the original idea of being fixed in place. This shared history explains the near-identical spelling—and the confusion it causes.
Stationery contains the word envelope—both have an e. An envelope is a classic piece of stationery, so if you can write a letter and put it in an envelope, you need stationery. Alternatively: er = eraser = stationery (things you use for writing); ar = anchor = stationary (fixed in place like an anchor).
Stationary — Adjective
As an adjective, stationary describes something that is not moving, is fixed in position, or remains unchanged over time. It modifies nouns and can appear before a noun or after a linking verb.
The bus was stationary for twenty minutes because of the roadworks.
A stationary front is bringing persistent rain to the north of England.
She cycled twelve miles on a stationary bike at the gym.
House prices have remained broadly stationary for the past six months.
Stationery — Noun
As a noun, stationery refers collectively to writing materials and related office supplies. It is an uncountable noun in most contexts, though it can appear with modifiers such as a piece of stationery or as a countable noun when referring to a specific set (e.g. wedding stationeries is rare but found in trade contexts).
The office manager ordered new stationery—headed paper, envelopes, and notepads.
She wrote the thank-you note on her personalised stationery.
The school provides all the stationery pupils need for the exam.
He found a lovely set of Japanese stationery in the gift shop.
Common Mistakes
ESL learners most often go wrong in two ways with these words.
Using stationery as an adjective. Because the words sound so similar, learners sometimes write stationery when they mean the adjective stationary. Remember: stationery is always a noun (a thing you can buy or use), never an adjective.
The train was stationery for ten minutes.
The train was stationary for ten minutes. (adjective = not moving)
I need to go to the shop to buy some stationary.
I need to go to the shop to buy some stationery. (noun = writing materials)
Confusing the compound forms. Learners sometimes write stationery shop correctly but then write stationery bike by analogy, confusing the category. A stationery shop (or stationer’s) sells writing materials; a stationary bike is a fixed exercise bicycle.
She works out every morning on her stationery bike.
She works out every morning on her stationary bike. (not moving = adjective)
She bought a new pen at the stationery shop. (writing materials = noun modifier)
Treating stationery as a countable noun without a modifier. English treats stationery as an uncountable mass noun. Learners influenced by their first language sometimes write a stationery or stationeries. Say a piece of stationery, some stationery, or stationery items instead.
Can you buy me a stationery from the shop?
Can you buy me some stationery from the shop?
Can you buy me a piece of stationery (e.g. a notepad) from the shop?
Examples in Context
The following pairs show both words used correctly in similar sentences to highlight the contrast.
The queue of cars remained stationary while the level crossing was closed.
The office supply company delivered the stationery order before the crossing was cleared.
The satellite maintains a stationary orbit above the equator.
Astronauts take small notebooks and other stationery items to the space station.
During the power cut, the escalators were stationary and passengers had to walk.
The hotel provides branded stationery on the writing desk in each room.
Related Forms
| Root word | Related forms | Notes |
|---|---|---|
| stationary | stationary (adjective only) | No noun or verb form; use “standstill” or “halt” as related nouns |
| stationery | stationer (noun), stationer’s (shop) | A stationer is a person or shop that sells stationery |
Quick Quiz
Test yourself with LexFizz’s free interactive exercises: True or False and Complete the Sentence. Try typing both words in a sentence to check you can recall which ending to use before looking them up.
Related Confusing Pairs
- Complement vs Compliment — another pair that differs by one vowel.
- Practice vs Practise — noun vs verb spelling in British English.
- Advice vs Advise — a similar noun/verb spelling split.
- Browse all confusing word pairs