expels

Expels is the third-person singular present tense of the verb expel. Expel means to force someone to leave a place or organization, or to drive something out of a container, body, or system. The associated noun is expulsion. The word derives from Latin ex pellere, meaning to drive out.

In usage, expels and its related forms cover several contexts. In education and organizations, expulsion refers to the formal removal of a student or member for rule violations, typically following due process. In government and international relations, a state may expel foreign nationals or diplomats as a punitive or security measure, with actions governed by domestic law and, where applicable, international norms. In science and medicine, expulsion describes the discharge of substances or objects from a body or device, such as expelling air from the lungs or ejecting material from equipment.

Expulsion as a noun is often distinguished from related terms such as eject, deport, banish, or discharge. Expulsion implies removal from a place or affiliation, whereas ejection generally refers to forcing something out of a container or system. Deportation specifically concerns removal of a person from a country, and banishment denotes long-term or permanent exclusion from a community or land.

See also: expulsion, eject, deportation, banishment, discharge.