| jack-knifes |
| jackknife | (n) มีดพกใหญ่, มีดพับขนาดใหญ่ |
| Jackknife (Statistics) | แจ็คไนฟ์ (สถิติ) [วิทยาศาสตร์และเทคโนโลยี] |
| jackknife | (n) a dive in which the diver bends to touch the ankles before straightening out |
| jackknife | (v) dive into the water bending the body at the waist at a right angle, like a jackknife |
| jackknife-fish | (n) black-and-white drumfish with an erect elongated dorsal fin, Syn. Equetus lanceolatus |
| Jackknife | n. A large, strong clasp knife for the pocket; a pocket knife. [ 1913 Webster ] |
