impact (

     n 1: the striking of one body against another
     2: a forceful consequence; "the book had an important impact on
        my thinking"
     3: influencing strongly: "they resented the impingement of
        American values on European culture" [syn: impingement,
     4: the violent interaction of individuals or groups entering
        into combat [syn: shock]
     v 1: press or wedge together; pack together
     2: have an effect upon; "Will the new rules affect me?" [syn: affect,
         bear upon, bear on, touch on, touch]