filtro

1. filter

for cleaning liquids or gases

• Cambia el filtro del agua.Change the water filter.
• El café pasa por un filtro de papel.The coffee passes through a paper filter.
• Este filtro retiene el polvo.This filter traps dust.

2. filter

for modifying an image or signal

• Añadió un filtro a la foto.She added a filter to the photo.
• El filtro cambia el color de la imagen.The filter changes the color of the image.
• Usa un filtro para reducir el ruido.Use a filter to reduce the noise.

3. screening process, selection criterion

for selecting or ruling things out

• El primer filtro eliminó muchas solicitudes.The first screening eliminated many applications.
• Los candidatos deben pasar varios filtros.Candidates must pass several screening stages.
• La entrevista sirve de filtro.The interview serves as a screening step.