This is the 4213th most frequent Polish word.
dawną
"Former" or "old" (feminine singular form in Polish).
Here, 'dawnej' serves as an adjective in the genitive case describing the noun 'szkoły' (school), akin to 'former' or 'old' in English.
Wróciłem do dawnej szkoły, aby odwiedzić nauczycieli.
I returned to the old school to visit the teachers.
In this sentence, 'dawna' describes the noun 'miłość' (love) in the nominative case, conveying the idea of 'former' or 'past'.
To była jej dawna miłość, która zapadła w pamięć.
It was her former love that remained in memory.
Here, 'dawne' modifies 'czasy' (times) in the accusative case, reflecting past events or experiences.