identical — ONAD

identical /ˌīˈden(t)ək(ə)l, ˌaɪˈdɛn(t)ək(ə)l

▸ adjective

1 similar in every detail; exactly alike:

four girls in identical green outfits

the passage on the second floor was identical to the one below.

▪ (of twins) developed from a single fertilized ovum, and therefore of the same sex and usually very similar in appearance. Compare with fraternal (SENSE 2).

▪ [attributive] (of something encountered on separate occasions) the same:

she stole a suitcase from the identical station at which she had been arrested before.

2 Logic & Mathematics expressing an identity:

an identical proposition.

– ORIGIN late 16th century (in identical (SENSE 2)): from medieval Latin identicus, from late Latin identitas (see identity).