jackknife
noun
a large pocketknife.
have jackknifed
-
present perfectof jackknife.present perfect
Used to describe actions that started in the past and continue into or have direct relevance to the present.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Four lorries have jackknifed in an eight-vehicle crash, causing major delays on a main road through Essex.
From BBC ● Mar. 30, 2023
But I don’t know if this road is closed or if it’s the three trucks that have jackknifed up here.
From Slate ● Jan. 4, 2022
Emily found out that there are three tractor-trailers on here that have jackknifed.
From Slate ● Jan. 4, 2022
