This is the 4427th most frequent Polish word.
jednostki
"Jednostki" means "units" in English.
The word 'jednostki' refers to 'units' as distinct entities within a group or set.
Liczba jednostek w tej grupie jest ograniczona.
The number of units in this group is limited.
Here, 'jednostki' means 'military units,' representing organized groups within the armed forces.
Jednostki wojskowe zostały przygotowane do manewrów.
The military units were prepared for maneuvers.
In this sentence, 'jednostka' is used to mean 'entity,' describing individual institutions or organizations in a scientific context.