jackknife
2 ENTRIES FOUND:
plural
jackknives
plural
jackknives
Britannica Dictionary definition of JACKKNIFE
[count]
1
2
:
a dive in which you bend from the waist and touch your ankles and then straighten out
2
jackknife
/ˈʤækˌnaɪf/
verb
jackknifes;
jackknifed;
jackknifing
2
jackknife
/ˈʤækˌnaɪf/
verb
jackknifes;
jackknifed;
jackknifing
Britannica Dictionary definition of JACKKNIFE
[no object]
:
to bend in the middle like a folding jackknife
especially
of a large truck
:
to have the back part slide out of control toward the front part
-
The truck jackknifed on the icy road.
