One letter which makes such a difference - STATIONARY vs. STATIONERY

There are many cases like that in English. Cases when two words are almost the same, but for one small detail which makes a difference. Today it's all about the difference between STATIONARY and STATIONERY

STATIONARY /ˈsteɪʃ(ə)n(ə)ri/

Adjective (przymiotnik)

Means: 

• not moving or not changing (nieruchomy, stojący w miejscu, unieruchomiony, stacjonarny, niezmienny)

She rammed into a stationary vehicle at the side of the road.

Uderzyła w zaparkowany na drodze samochód.

The rate of inflation has been stationary for several months.

Stopa inflacji nie uległa zmianie od kilku miesięcy.

a stationary bike

(rowerek treningowy)

a stationary bike

STATIONERY /ˈsteɪʃ(ə)n(ə)ri/

Noun (rzeczownik)

Means: 

• pens, paper, envelopes, pencils, and other things used for writing (materiały piśmienne, materiały biurowe)

• paper used for writing letters, often with the name of a company on it, and envelopes that match (papier listowy, papeteria)

a stationery shop or store

(sklep papierniczy)