bijou /biˈʒuː/adjective 3noun 3forms 4 adjective3 •Small; little.You may have vada'd one of our tiny bijou masterpiecettes, heartface. — 1968 •Small and elegant. •Intricate; finely made. noun3 •A jewel. •A piece of jewelry; a trinket. •A small intricate piece of metalwork.[…]a saucepan on the hob, and a brazen bijou over the fireplace designed for the suspension of a roasting-jack. — 1860 formsbijous · bijoux · more bijou · most bijou