Definition of b/w in English:

b/w

Syllabification: b/w

abbreviation

Black and white (used especially to describe printing, movies, photographs, or television pictures).

Definition of b/w in:

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Word of the day hypnopompic
Pronunciation: ˌhɪpnə(ʊ)ˈpɒmpɪk
adjective
relating to the state immediately preceding waking up