/ ˈgeswɜːk; NAmE -wɜːrk/ noun
[ U ] the process of trying to find an answer by guessing when you do not have enough information to be sure :
It was pure guesswork on our part.
/ ˈgeswɜːk; NAmE -wɜːrk/ noun
[ U ] the process of trying to find an answer by guessing when you do not have enough information to be sure :
It was pure guesswork on our part.
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005