This is the 9435th most frequent Turkish word.
adaylığına
"To their candidacy" or "to their nomination."
In this sentence, the word 'adaylığına' is used to denote a person's candidacy for a position, in a dative case to convey 'to' or 'for'.
Onun başkanlık adaylığına destek veriyorum.
I support his candidacy for president.
Here, 'adaylığına' is utilized to describe applying for a specific candidacy position, showing the target position in mind.
Partisinin milletvekili adaylığına başvurmaya karar verdi.
He decided to apply for parliamentary candidacy of his party.
In this usage, 'adaylığına' refers to the candidacy stage of a professional career, specifically targeting teaching.