n (1)太阳，日(round body in the sky that gives light and heat to the earth)[C，the～]：The sun rises in the east and sets in the west. 太阳从东方升起，在西方落下。the～'s rays 太阳的光线;The sun is the source of all energy on the earth. 太阳是地球上所有能量的源泉。a pale/burning～暗淡/灼热的太阳;

(2)太阳的光(热)(light and heat from the sun;sunshine)[U，the～]：sit/lie in the～坐/躺在阳光下;have the～in one's eyes 阳光照眼;let in/shut out the～放进/遮住阳光;This room gets plenty of～in the morning. 这个房间上午有充足的阳光。The～has faded the curtains. 阳光晒得窗帘褪色了。Too much～disagrees with her. 太多的阳光不适合她。

(3)星体，(尤)恒星(any star，esp one that planets go round)[C]：Our～is only one of many～s in the heavens. 我们的太阳只是天上的恒星之一。Do other～s have planets revolving round them? 其他星体也有行星围绕其旋转吗?

catch the sun 被太阳曝晒：You've certainly caught the～today! 你今天让太阳晒得很厉害!

under the sun在世界上：He has visited almost every country under the～. 他几乎走遍了世界上的每一个国家。

with the sun 在日出(落)时：He usually gets up with the～. 他通常黎明即起。

→′sunless adj 无阳光的;晒不到太阳的;′sunny adj 阳光充足的;晴朗的;欢乐的;′sunnily adv 阳光充足地;′sunniness n 阳光充足;′sun-baked adj 太阳晒干的;阳光充足的;′sunbathe v 沐日光浴;′sunbeam n 阳光;′sun-blind n 窗帘;′sunburn n 晒斑;′sundial n 日规;′sundown n 日落;′sun-drenched adj 晒透了的;′sunflower n 向日葵;′sun-glasses n 太阳镜;′sun-god n 太阳神;′sun-hat n 太阳帽;′sun-lamp n 太阳灯;′sunlight n 阳光;′sunlit adj 阳光照耀的;′sun-ray n 太阳光线;′sunrise n 日出;黎明;′sun-roof n(汽车的)天窗;′sunset n 日落，傍晚;′sunshade n 遮阳伞;′sunshine n 阳光;日照;光明;′sunspot n 太阳黑子;′sunstroke n 中暑;′sun-tan n(皮肤晒成的)古铜色，日灼;′sun-trap n 避风向阳处;′sun-worship n 太阳崇拜;

vt 晒太阳(expose oneself to the sun's rays)[T+n (oneself)]：He is～ning himself in the garden/on the beach. 他正在花园里/海滩上晒太阳。