1. A kitchen utensil with holes or a mesh used to separate solids from liquids or to break up lumps
Use a strainer to remove lumps from the flour.
Use uma peneira para remover os grumos da farinha.
2. A device used to filter or purify liquids by passing them through a porous material
Pour the pasta through a strainer to drain the water.
Despeje a massa através de uma peneira para drenar a água.
3. Something that tests one's patience, endurance, or resources
The long commute was a strainer on his mental health.
O longo trajeto era uma tensão na sua saúde mental.