amber
/ˈæmbə(r); `æmbɚ/ n
1 [U]
(a) hard clear yellowish-brown gum used for making ornaments or jewellery 琥珀
[attrib 作定语]
an amber necklace 琥珀项链.
(b) its colour 琥珀色（黄褐色）.
2 [C] yellow traffic-light seen between red and green 黄色交通信号灯（显示於红色与绿色交通信号灯之间）.