(~s, ~ting)
Note: The form '~' is used in the present tense and is also the past tense and past participle.
1.
If you ~ someone or ~ their prices, you sell a product more cheaply than they do. (BUSINESS)
The firm will be able to ~ its competitors whilst still making a profit.
...promises to ~ air fares on some routes by 40 per cent...
VERB: V n, V n
2.
If your attempts to achieve something are ~ by something, that thing prevents your attempts from being effective.
Popular support would be ~ by political developments.
= undermine
VERB: usu passive, be V-ed