This is the 15201st most frequent Polish word.
seksualną
The Polish word "seksualną" means "sexual" in English (feminine singular accusative or instrumental form).
Here 'seksualną' is used as an adjective describing 'orientacji' (orientation), indicating its relation to sexuality.
Ludzie często dyskutują na temat swojej seksualnej orientacji.
People often discuss their sexual orientation.
In this case, 'seksualną' modifies 'relację' (relationship), conveying the nature of the relationship as being related to sexuality.
W książce przedstawiono seksualną relację między bohaterami.
The book depicts a sexual relationship between the characters.
Here, 'seksualna' (adjectival form) describes 'edukacja' (education), emphasizing the topic being about sexual matters.