adv
1 in a light manner 轻轻地; 轻巧地.
2 without serious consideration 轻率地; 不严肃地
*Marriage is not something to be undertaken lightly. 婚姻大事不可掉以轻心.
3 (idm 习语) get off `lightly/`cheaply (infml 口) escape serious punishment or inconvenience 逃过重罚或麻烦事.

adv
with only a small amount of weight or force
= gently
　I knocked lightly on the door.
using or having only a small amount of something
　a lightly greased pan
　lightly armed soldiers
take/treat/approach sth lightly
to do something without serious thought
　Divorce is not a matter you can afford to take lightly.
get off lightlyalsobe let off lightly
to be punished in a way that is less severe than you deserve
　He got off lightly because his father was a lawyer.
without worrying, or without appearing to be worried
　'Things will be fine,' he said lightly.