This is the 314th most frequent Persian word.
نخست
"نخست" means "first" or "foremost."
Here, 'نخستین' means 'first' and functions as an adjective to describe the noun 'ملاقات' (meeting).
نخستین ملاقات ما در پارک بود.
Our first meeting was in the park.
In this sentence, 'نخست' is used as an adverb meaning 'at first' or 'initially' to describe how the action of beginning occurred.
او نخست سخنرانی خود را با نقل قولی آغاز کرد.
He began his speech with a quote at first.
Here, 'نخست' serves as an adverb meaning 'first', indicating the sequence of actions to be taken.