The effect or impression of one thing on another: still gauging the impact of automation on the lives of factory workers.
from The American Heritage Dictionary of the English Language, 4th Edition
The force or impetus transmitted by a collision.
from The American Heritage Dictionary of the English Language, 4th Edition
The power of making a strong, immediate impression: a speech that lacked impact.
from The American Heritage Dictionary of the English Language, 4th Edition
The striking of one body against another; collision. See Synonyms at collision.
from The American Heritage Dictionary of the English Language, 4th Edition
An impinging or striking especially of one body against another.
from Free Scrabble Dictionary
verb-intransitive
Usage Problem To have an effect or impact.
from The American Heritage Dictionary of the English Language, 4th Edition
verb
To fix firmly by or as if by packing or wedging.
from Free Scrabble Dictionary
To press together.
from Free Scrabble Dictionary
To have a direct effect or impact on impinge on.
from Free Scrabble Dictionary
To strike forcefully.
from Free Scrabble Dictionary
To cause to strike forcefully.
from Free Scrabble Dictionary
verb-transitive
To pack firmly together.
from The American Heritage Dictionary of the English Language, 4th Edition
To strike forcefully: meteorites impacting the lunar surface.
from The American Heritage Dictionary of the English Language, 4th Edition
Usage Problem To have an effect or impact on: "No region ... has been more impacted by emerging demographic and economic trends” ( Joel Kotkin).
from The American Heritage Dictionary of the English Language, 4th Edition
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