English for Today by Ganiu Abisoye Bamgbose (Dr GAB)
STATIONARY or STATIONERY?
The school got a range of ~stationary~ (nonstandard).
The school got a range of ~stationeries~ (nonstandard).
The school got a range of *stationery* (standard).
The things needed for writing, such as paper, pens, pencils, and envelopes are called stationery. Note that “stationery” is a collective noun and cannot be pluralised as “stationeries”.
The vehicle was ~stationery~ for 30 minutes (nonstandard).
The vehicle was *stationary* for 30 minutes (standard).
Something that is stationary is not moving.
GAB
No comment