firstly

en primer lugar, primeramente

Se usa para presentar la primera razón, idea o etapa de una lista.

En inglés sencillo: 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.

Sinónimos: first, to begin with

Expresiones frecuentes: firstly consider something, firstly we need, firstly because

primero

Antes que todas las demás personas o cosas, en el tiempo o en el orden.

En inglés sencillo: 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.

Sinónimos: first

Antónimos: last

Expresiones frecuentes: arrive firstly, appear firstly, come firstly