noun [ usually sing. ]
1.
the First Lady (in the US) the wife of the President
2.
( NAmE ) the wife of the leader of a state
3.
the woman who is thought to be the best in a particular profession, sport, etc. :
the first lady of country music
noun [ usually sing. ]
1.
the First Lady (in the US) the wife of the President
2.
( NAmE ) the wife of the leader of a state
3.
the woman who is thought to be the best in a particular profession, sport, etc. :
the first lady of country music
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005