let off
🇺🇸
/let ɔːf/
🇬🇧
/let ɒf/
to not punish someone for doing something wrong or to give them a lighter punishment
The judge decided to let off the young man with a warning instead of a fine.
裁判官は若者に罰金の代わりに警告を与えて放免することに決めました。