adjective [not
gradable] 1. exactly the same, or very similar
I've got three identical navy suits.
The interests of both parties may not be identical, but they do overlap considerably.
The tests are identical to those carried out last year.
2. Identical twins are two children who come from the same egg in the mother and so are the same sex
and look extremely similar.
identically
adverb [not
gradable] The two sisters were always dressed identically (=in the same clothes).