SOLVER
Meaning of SOLVER in English
/ ˈsɒlvə(r); NAmE ˈsɑːl-/ noun
a person who finds an answer to a problem or a difficult situation :
She's a good problem solver .
Oxford Advanced Learner's English Dictionary.
Оксфордский английский словарь для изучающик язык на продвинутом уровне.
2005