The band has launched a range of personalized stationery for fans.
The depression remained stationary near the north-west coast of Mexico.
We’re opening a new book and stationery shop.
Some birds can stay stationary in the air for several minutes.
The key to understanding the distinction between these two words is to know what each one means and to be aware of the role they play in a sentence (that is, their part of speech or word class).
This word is an adjective, and in general use, it means ‘not moving, or not meant to move’:
It is difficult for me to sit stationary for long periods.
He drove the car in a negligent way and hit a stationary lorry.
When people think of shooting for sport, they visualize competitors firing at stationary targets.
There are two specialized meanings of stationary, related to stability or lack of movement:
Not changing in quantity or condition:在数量和条件上不变：
population estimates did not differ over time; therefore, we constructed a life table under the assumption of a stationary
(In Astronomy, referring to a planet) having no apparent motion or longitude: 在天文学中指地球等没有明显地运动：
after being retrograde since July, the planet appears stationary on the 30th.
This is a noun, with two meanings, both related to paper goods:
Items such as paper, pens, folders, notebooks, etc. used in an office:
We supply office stationery for all types of companies and corporations.
Specially designed and printed notepaper, envelopes, invitations, etc.:
They created an emblem that was incorporated throughout the wedding stationery.
Words ending in –ary
nouns (e.g. boundary, anniversary, dictionary)
adjectives (e.g. ordinary, customary, honorary)
Words ending in –ory
nouns (e.g. category, history, promontory)
adjectives (e.g. derogatory, satisfactory, derisory).
Words ending in –ery
These words are nearly always nouns. They’re often related to words ending in -er: so, brewery and brewer; pottery and potter; bakery and baker.