We use exclude when we do not let someone or something join a group or event. It means to stop someone or something from being part of a group.
They exclude him from the game.
We exclude some names from the list.
In language teaching or grammar, exclude means to not use certain words or examples to make rules clearer or simpler.
Exclude irregular verbs in this list.
In this rule, we exclude some cases.
In science or math, to exclude means to not use or think about some data or cases. It stops these things from changing the result.
We exclude errors from the data set.
The study excludes some cases.
To exclude can mean to officially stop someone from joining a game, school, or event because of rules or bad behavior.
The player was excluded from the match.
She was excluded from the school team.
Exclude can mean to decide that some ideas or choices are not possible or will not happen. It is like saying ‘no’ to those options.
We exclude this idea from our plan.
They exclude that choice from options.
To exclude can also mean to make someone feel left out or lonely by not letting them join social groups or fun activities. This can hurt feelings.
They exclude him from their friendship.
She feels excluded at the party.