天光是指在早晨日出时或傍晚日落时，天空中由于太阳的光线照射而形成的明亮光芒。它也可以指天空中的光线，星星闪烁的天光。在古代文学中，天光也常被用来比喻美好的景色或氛围。

英文：The light of the sky, especially at sunrise or sunset, caused by the sun's rays. It can also refer to the light in the sky, such as the twinkling stars. In ancient literature, it is often used as a metaphor for beautiful scenery or atmosphere.

怎么读（音标）：tiān guāng [tiɛn gwɑŋ]

用法：作为名词使用，常用于描述早晨或傍晚的自然景色。

例句1：The sky was filled with a soft golden light at dawn. (黎明时分，天空被柔和的金色光芒填满。)

例句2：As the sun set, the sky was painted with a beautiful array of colors, creating a stunning display of heavenly light. (太阳落山时，天空被绚丽多彩的色彩所染，创造出一幅令人惊叹的天堂之光画卷。)

例句3：The stars twinkled in the night sky, adding to the ethereal beauty of the heavenly light. (星星在夜空闪烁，增添了天光的神秘美感。)

例句4：The poet was inspired by the heavenly light and wrote a beautiful poem about the sunrise. (诗人受到天光的启发，写下了一首关于日出的美妙诗篇。)

例句5：The ancient temple was bathed in the warm glow of heavenly light, creating a serene and peaceful atmosphere. (古老的寺庙被天光的温暖光芒所笼罩，营造出宁静祥和的氛围。)

同义词及用法：天色（tiān sè）、曙光（shǔ guāng）、晨光（chén guāng）均可用来指代早晨或傍晚时分的天空中的光线。但是，它们与天光有所不同，前者更侧重于描述整个天空的颜色和氛围，后者则更强调太阳初升或即将落山时的特定时刻。

编辑总结：天光是一个形容早晨或傍晚时分天空中明亮光芒的词语，也可以作为比喻来形容美好景色或氛围。在使用中要注意区分其与其他类似词语的含义差异。