This is the 11495th most frequent Polish word.
jedynych
The Polish word "jedynych" means "the only" (plural, genitive/accusative case) in English.
The term 'jedyni' is a plural adjectival form, meaning 'the only' and here agrees with the noun 'nauczyciele' (teachers).
To są jedyni nauczyciele, którzy naprawdę rozumieją uczniów.
These are the only teachers who truly understand students.
'Jedynych' is the genitive or accusative plural form of 'jedyni', used here to describe 'osób' (people).
Ona należy do jedynych osób, które pamiętają tamte czasy.
She belongs to the only people who remember those times.
'Jedynych' is the plural form in the appropriate case to agree with 'ludzi' (people), reflecting specificity.