( formal )
1.
all the same or similar :
The houses are all of a piece.
2.
all at the same time :
The house was built all of a piece in 1754.
( formal )
1.
all the same or similar :
The houses are all of a piece.
2.
all at the same time :
The house was built all of a piece in 1754.
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005