impact
/ˈɪmpækt/ noun, verb
Forms impacts impacting impacted
- noun The striking of one body against another; collision.
- noun The force or energy of a collision of two objects. “The hatchet cut the wood on impact.”
- noun (chiefly medicine) A forced impinging. “His spine had an impingement; L4 and L5 made impact, which caused numbness in his leg.”
- noun (figurative, proscribed) A significant or strong influence or effect. “His friend's opinion had an impact on his decision.”
- verb (transitive) To collide or strike, the act of impinging. “When the hammer impacts the nail, it bends.”
- verb (transitive) To compress; to compact; to press into something or pack together. “The footprints of birds do not impact the soil in the way those of dinosaurs do.”
- verb (transitive, figurative, proscribed) To significantly or strongly influence or affect; to have an impact on. “I can make the changes, but it will impact the schedule.”
- verb (transitive, rare) To stamp or impress onto something. “Ideas impacted on the mind.”
Synonyms
percussion wallop impingement encroachment shock affect bear upon bear on touch on touch
Etymology
Attested since the 17th century, from Latin impāctus.
Webster’s 1913
- verb To drive close; to press firmly together: to wedge into a place. Woodward.
- noun Contact or impression by touch; collision; forcible contact; force communicated.
- noun The single instantaneous stroke of a body in motion against another either in motion or at rest.
Etymology [L. impactus, p. p. of impingere to push, strike against. See Impinge.]
Sources: Wiktionary · WordNet 3.0 · Webster’s 1913 — from the Wiktionary entry “impact”, CC BY-SA 4.0. Details