lest
/lɛst/; /lɛst/; /lɛst/; /lɛst/; /lɛst/; /lɛst/; /lɛst/; /lɛst/; /lɛst/; /lɛst/; /lɛst/; /lɛst/Definitions
1. conjunction
used to indicate a condition or consequence
“I’ll go to the store, lest I run out of milk.”
2. preposition
used to indicate a condition or consequence
“The city will be flooded, lest the dam is fixed.”
3. adverb
used to indicate a condition or consequence
“I’ll finish my homework, lest I get in trouble.”