lest
conjunction
literaryuk/lest/us/lest/inordertopreventanypossibilitythat something willhappen:
以免，唯恐They wereafraidtocomplainabout thenoiselest theyannoyedtheneighbours.他们不敢对噪声有任何抱怨，唯恐惹恼了邻居。
Linguistics: connecting words which express a condition
- assuming (that)
- at
- at the risk of doingsomethingidiom
- by
- ceteris paribus
- even
- granted
- if
- long
- provided (that)
- risk
- suppose
- unless
- whether