نخست

In a sentence

• نخستین ملاقات ما در پارک بود.

  Our first meeting was in the park.

  Here, 'نخستین' means 'first' and functions as an adjective to describe the noun 'ملاقات' (meeting).

• او نخست سخنرانی خود را با نقل قولی آغاز کرد.

  He began his speech with a quote at first.

  In this sentence, 'نخست' is used as an adverb meaning 'at first' or 'initially' to describe how the action of beginning occurred.

• نخست باید برنامه‌ریزی کنیم و سپس اقدام کنیم.

  First, we must plan and then we act.

  Here, 'نخست' serves as an adverb meaning 'first', indicating the sequence of actions to be taken.