To sift means to pass something through a fine mesh or screen to separate wanted parts from unwanted parts, or to examine something carefully to find what's useful or important.

When bakers sift flour, they shake it through a wire mesh tool called a sifter to break up lumps and make it lighter and airier. This helps cakes and cookies turn out fluffy instead of dense. Archaeologists sift through dirt at dig sites, passing soil through screens to catch tiny artifacts like pottery shards or ancient seeds that might otherwise get lost.

The word also describes careful, methodical searching. A detective might sift through hundreds of witness statements looking for the one crucial detail that solves the case. When doing research for a report, you might need to sift through dozens of websites to find reliable information worth including. A coach might sift through applications to find the most promising players for the team.

The key idea behind sifting is separation: keeping what matters, letting go of what doesn't. Whether you're sifting flour in the kitchen or sifting through evidence in a mystery, you're using patience and care to find exactly what you need.