There are 2 definitions of weigh in in English:

weigh in1

(Chiefly of a boxer or jockey) be officially weighed before or after a contest: Mason weighed in at 203 lb
More example sentences
  • No objection was lodged before the jockeys weighed in.
  • Tann weighed in for the bout at 230 pounds while Gavern tipped the scales at 223 pounds.
  • For example, I only weigh about 200 lb when I weigh in with my clothes on.
See parent entry: weigh

Definition of weigh in in:

Get more from Oxford Dictionaries

Subscribe to remove ads and access premium resources

Word of the day meretricious
Pronunciation: merəˈtriSHəs
adjective
apparently attractive but having in reality no value...

There are 2 definitions of weigh in in English:

weigh-in2

Syllabification: weigh-in

noun

An official or regular weighing of something or someone, e.g., of boxers before a fight.
More example sentences
  • The day before the fight was the weigh-in he signed another boxing contract without my knowledge.
  • How do you feel about the big weight gains some fighters make between weigh-ins and fight time?
  • The film shows Ali acting up at the weigh-in for the Liston fight.

Definition of weigh in in: