to have your weight measured, especially before a contest, race, etc. :
Both boxers weighed in at several pounds below the limit.
—related noun weigh-in
to have your weight measured, especially before a contest, race, etc. :
Both boxers weighed in at several pounds below the limit.
—related noun weigh-in
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005