This is the 11646th most frequent Polish word.
kluczyk
"Kluczyk" means "small key" or "little key" in English.
'Kluczyk' here is used to denote a small key, specifically for a personal locker, emphasizing its diminutive form.
Zawsze noszę kluczyk od szafki w mojej kieszeni.
I always carry the key to my locker in my pocket.
In this context, 'kluczyk' refers to a tool-specific key, used for entering or operating equipment in a workshop.
Czy widziałeś mój kluczyk do warsztatu?
Have you seen my workshop key?
Here, 'kluczyk' is used sentimentally to describe a decorative or symbolic key given as a gift.