first (EN)
adjetivo, advérbio, substantivo

adjetivo “first”

first, non-gradable
  1. primeiro
    My first attempt at baking a cake was a complete disaster.
  2. principal
    In her field, she is regarded as the first authority on genetic research.
  3. nobre (associado à família mais alta em um país)
    The first lady of the country is the wife of the president.

advérbio “first”

first
  1. primeiramente
    First, let's go over the safety procedures before we start the experiment.
  2. inicialmente
    She first met her future husband at a friend's wedding.

substantivo “first”

sg. first, pl. firsts or uncountable
  1. o primeiro
    She was the first in the race.
  2. primeira marcha
    After starting the car, make sure it's in first before you pull away from the curb.
  3. estreia (um evento ou instância que acontece pela primeira vez)
    His invention was a first in the field of renewable energy technology.