cast

Verb

Plain form
cast

Third-person singular
casts

Past tense
cast

Past participle
cast

Present participle
casting

Saturn casting a shadow on its rings

(transitive) If $x$ casts light or shadow on $y$ , $x$ causes $y$ to be lit or in shadow.
The street light outside my window cast shadows on the wall.

The campfire cast a warm light on her face.
(transitive) If you cast light on an idea or problem, you make it clearer by giving more information about it.
Our research casts new light on the connection between temperature and plant growth.
(transitive) If you cast doubt on something, you make make people less likely to believe it.
The video casts doubt on the story told by police.
(transitive & intransitive) If you cast a look, glance, you look quickly.
She cast about for her pen.

He cast a quick look at the TV.
(transitive) If you cast a vote, you vote in an election.
I've decided to cast my vote for the Democratic Party.
(transitive) If you cast metal, plastic, etc., you make an object by applying wet or melted material to another material and waiting for it to harden.
(transitive) If you cast somebody in a part in a play, movie, etc., you choose them to play that part.
(transitive) If you cast something somewhere, you throw it there.

A boy with a cast on his leg

Making a cast of a face

(countable) The cast of a play, movie, or show are all the people who act in it.
The director has brought back many of the cast and crew of the earlier movie.
(countable) The cast of characters is the complete list of characters.
(countable) A cast is a hard protective covering on part of your body that has been seriously hurt or broken.
(countable) A cast is a shape made by applying wet or melted material to another material and waiting for it to harden.
(countable) A cast is a throw, especially in fishing when you throw your line out.