名詞 lightening:

1. descent of the uterus into the pelvic cavity that occurs late in pregnancy; the fetus is said to have dropped
2. changing to a lighter color
   同義詞：whitening

動詞 lighten:

1. make more cheerful
   同義詞：lighten, lighten up, buoy up
2. reduce the weight on; make lighter
   同義詞：lighten
3. become more cheerful
   同義詞：lighten, lighten up, buoy up
4. make lighter or brighter
   同義詞：brighten, lighten up, lighten
5. become brighter
   同義詞：brighten, lighten
6. become lighter
   同義詞：lighten, lighten up
7. alleviate or remove (pressure or stress) or make less oppressive
   同義詞：relieve, lighten

1. Lightening is usually accompanied by thunder.
   閃電總與雷鳴相伴。
2. Heavy rain came on the heels of the lightening.
   大雨緊跟著閃電而來。