Third-person singular simple present indicative form of weigh in

(intransitive with an indication of weight) To undergo a weigh-in. / (transitive) To subject to a weigh-in. / (intransitive, with "at") To weigh.

The process of determining a competitor's body weight prior to an event, especially to ensure it is within the weight restrictions.

The act or process of undergoing a weigh-in, as before a boxing match or after a horserace.

A surname.

(nautical) To raise the anchor of a ship or boat prior to getting under way.

(Canada, US) A place on the highway where trucks stop to get weighed.

a mechanical device, often coin-operated, for determining the weight of an object or person

To act as a ballast for. / (idiomatic) To be too much for someone to cope with.

(Canada, US, rowing) To stop rowing after a "weigh enough" command.