lightening

名词 lightening:

descent of the uterus into the pelvic cavity that occurs late in pregnancy; the fetus is said to have dropped

changing to a lighter color

同义词：whitening

动词 lighten:

make more cheerful

reduce the weight on; make lighter

同义词：lighten

become more cheerful

make lighter or brighter

become brighter

become lighter

alleviate or remove (pressure or stress) or make less oppressive