not only... but...
not only (something), but (also) (something else)
Being, doing, or having one thing as well as something else. She not only speaks five languages, but she is an extraordinary pianist as well. The city is not only very cool and trendy, but also surprisingly affordable.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
not only... but (also)...both... and...: He not only read the book, but also remembered what he had read.
See also: not
Farlex Partner Idioms Dictionary © Farlex 2017