firstly

まず、第一に

理由や要点、手順を並べるとき、最初のものを示す言葉。

やさしい英語で： Used to introduce the first reason, point, or step in a list.

• Firstly, we need a plan.
• Firstly, the house is too expensive; secondly, it is too small.
• Firstly, wash your hands before touching the food.

類義語： first, to begin with

よく使う表現： firstly consider something, firstly we need, firstly because

最初に

時間や順番で、他の人や物より先に。

やさしい英語で： Before all other people or things in time or order.

• The messenger came firstly, and the soldiers followed.
• Of the three guests, she arrived firstly.
• The smallest boat entered firstly, ahead of the others.

類義語： first

反対語： last

よく使う表現： arrive firstly, appear firstly, come firstly