This is the 45th most frequent Slovak word.
tejto
"Tejto" means "this" (feminine, dative or genitive case) in English.
Here, "tejto" is a demonstrative pronoun referring to the noun "konferencie" (conference), which is in the genitive case singular.
Chcela by som sa zúčastniť tejto konferencie.
I would like to attend this conference.
In this sentence, "tejto" indicates a specific book ("knihy") being talked about, aligning with the genitive singular case.
Pozrela som sa na dizajn tejto knihy.
I looked at the design of this book.
Here, "tejto" refers to "schôdzky" (meeting) in a specific context, again in the genitive case singular.