1.
to buy and sell a particular product
SYN trade in :
The company deals in computer software.
2.
to accept sth as a basis for your decisions, attitudes, or actions :
We don't deal in rumours or guesswork.
1.
to buy and sell a particular product
SYN trade in :
The company deals in computer software.
2.
to accept sth as a basis for your decisions, attitudes, or actions :
We don't deal in rumours or guesswork.
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005