简明英汉词典

 lest
[lest]
conj.
唯恐, 以免, 免得, (用于fear, be afraid之后, 等于that)

美国传统词典[双解]

 lest
lest
AHD:[lμst]
D.J.[lest]
K.K.[lWst]
conj.（连接词）
For fear that:
唯恐，以免：
tiptoed lest the guard should hear her; anxious lest he become ill.
踮起脚趾走路，以免守卫发现她；唯恐他生病而感到焦虑

语源

(1)

 Middle English
中古英语

(2)

 from Old English tht?s the} [so that not]
源自 古英语 tht?s the} [为了不使]

(3)

 from l?s [less] * see less
源自 l?s [较少的，更小的] *参见 less

现代英汉词典

 lest
[lest]
conj.

(1)

 免得，以免
I obeyed her lest she should be angry.
我得顺着她，免得她生气。

(2)

 恐怕

现代英汉综合大辞典

 lest
[lest]
conj.

(1)

 [所连接的状语从句里常用should或原形动词]以免; 生怕; 唯恐

(2)

 [=that][用于fear, worry等词之后起连接作用, 无实际意义]
Be careful lest you fall from that tree.
要当心, 以免从树上摔下来。
I was afraid lest he might come too late.
我怕他来得太晚。

用法词典

 lest
源自古英语the l?ste?s the

美国传统词典

 lest
lest
AHD:[lμst]
D.J.[lest]
K.K.[lWst]
conj.
For fear that:
tiptoed lest the guard should hear her; anxious lest he become ill.

语源

(1)

 Middle English

(2)

 from Old English tht?s the} [so that not]

(3)

 from l?s [less] * see less

英汉化学大词典

 lest
唯恐,免得,以免

英汉计算机大词典

 lest
唯恐(免得,以免)