noun, plural (especially collectively) jackfish (especially referring to two or more kinds or species) jackfishes.
any of several pikes, especially the northern pike.
noun (pl) -fish, -fishes
the pike fish, esp when small
noun 1. frost or freezing cold personified. noun 1. a personification of frost or winter
[jak-froot] /ˈdʒækˌfrut/ noun 1. a large, tropical, milky-juiced tree, Artocarpus heterophyllus, of the mulberry family, having stiff and glossy green leaves, cultivated for its very large, edible and seeds. 2. the fruit of this tree, which may weigh up to 70 pounds (32 kg). /ˈdʒækˌfruːt/ noun 1. a tropical Asian moraceous tree, Artocarpus heterophyllus 2. […]
noun 1. another name for goatsbeard (sense 1)
[jak-ham-er] /ˈdʒækˌhæm ər/ noun 1. a portable drill operated by compressed air and used to drill rock, break up pavement, etc. /ˈdʒækˌhæmə/ noun 1. a hand-held hammer drill, driven by compressed air, for drilling rocks, etc n. also jack hammer, 1903, from jack (n.) + hammer (n.). As a verb by 1965.