(cosmetics) being blue-based; having a blue undertone to one's skin

blue tarp

(organic chemistry) bromothymol blue; BTB

(Internet slang, video editing) blue screen

(Internet slang) Abbreviation of ブルーバック.

Abbreviation of ブルーレイ (burūrei, “Blu-ray Disc”).

blue jeans

a bead string; a jewelled necklace / (figuratively) life, existence / Synonym of 見せばや (misebaya): Siebold's stonecrop (Hylotelephium sieboldii)

(slang, derogatory) Synonym of 埼玉 (Saitama): Saitama Prefecture / (slang, derogatory) Synonym of さいたま (Saitama): the titular capital of Saitama Prefecture

(Shinto) a shrine dedicated to a specific individual / (Shinto) a place where the remains of the dead are kept temporarily during a period of mourning, prior to burial at a formal funeral