cast

The word "cast" is a fascinating example of how one word can take on multiple meanings over time, many of them stemming from a central idea of sending out or placing/setting. At its heart, "cast" means to throw or propel something—think of casting a fishing line, where you send the hook and line out into the water. This sense remains common today: "The wind cast dry leaves across the lawn."

However, "cast" has evolved significantly. In the world of theatre and film, to cast means to select actors for specific roles. The director casts the movie, choosing who will embody each character. You might say, "She was perfectly cast as the villain!" Once the roles are filled, the word also works as a noun: the group of actors performing in a production is called the cast. For instance, the cast of Hamilton is incredibly talented.

Beyond people and objects being thrown, "cast" can describe the process of shaping materials by pouring a liquid into a mold—casting iron into a part, for example. It can also mean to shed or get rid of something, such as a snake casting its skin or a person casting off old habits. You can even cast your gaze (or your eyes) in a certain direction: "She cast her eyes downward in shyness."

The word is also common in fixed phrases and more formal contexts. You can cast a vote (or ballot), cast lots (make a decision by chance), or cast doubt on a claim. And "cast" often describes an effect that spreads outward: a tree casts a shadow, a lamp casts light, and an air of suspicion can be cast over a legal case.

As a noun, a cast can be a rigid covering used to support a broken bone. Whether it's throwing a line, choosing actors, shaping metal, or creating an impression, "cast" keeps returning to the idea of sending something out, setting it in place, or shaping it into a new form.