lest
🇺🇸
/lest/
🇬🇧
/lest/
conjunction
R
to avoid the risk of something happening
He spoke quietly lest he wake the baby.
他轻声说话，以免吵醒宝宝。
R
because of the fear that something might happen
She hurried home lest it start raining.
她匆忙赶回家，以免开始下雨。
translation
以免, 唯恐