鸦 (w)

(yā) crow

鸦片 (w)

(yāpiàn) opium (loanword)

鸦片战争 (w)

(yāpiànzhànzhēng) the Opium Wars of 1840-1842 and 1860-1861

鸦雀无声 (w)

(yāquèwúshēng) lit. crow and peacock make no sound; absolute silence (idiom); not a single voice can be heard; absolute silence