scatter implies a force that drives parts or units irregularly in many directions.
the bowling ball scattered the pins
disperse implies a wider separation and a complete breaking up of a mass or group.
police dispersed the crowd
dissipate stresses complete disintegration or dissolution and final disappearance.
the fog was dissipated by the morning sun
dispel stresses a driving away or getting rid of as if by scattering.
an authoritative statement that dispelled all doubt
Example Sentences
Police ordered the crowd to disperse. the crowd dispersed once the show ended
Recent Examples on the WebBut as people disperse, residents in neighborhoods that were never affected are locking their doors and shutting down their businesses. Marina Lopes, Washington Post, 5 Aug. 2022 In addition, the Forest Preserves’ trout lakes will be closed to all fishing from March 28, until sunrise on April 2, to allow the trout to disperse throughout the lakes prior to opening. Paul Eisenberg, chicagotribune.com, 18 Mar. 2022 The city expects to receive 9,200 kits and probably won’t disperse them until early next week. Jesse Leavenworth, courant.com, 28 Dec. 2021 Police refused and fired tear gas to disperse the crowd. Laetitia Bezain, ajc, 29 Aug. 2022 Officers assigned to the Civil Disturbance Response Team responded to the entertainment district around 1:39 a.m. to disperse a large crowd. Erin Couch, The Enquirer, 8 Aug. 2022 Police used tear gas to disperse the crowd ahead of an 8 p.m. curfew. From Usa Today Network And Wire Reports, USA TODAY, 25 July 2022 Guests trickled out and rejoined the block party, which now included several squad cars and more police officers trying to disperse the crowd. John Ortved, New York Times, 20 July 2022 Elia was forced to the ground by at least four officers after police had deployed tear gas to disperse a crowd near North Lombard Street, according to the suit.oregonlive, 20 July 2022 See More
Word History
Etymology
Middle English, from Latin dispersus, past participle of dispergere to scatter, from dis- + spargere to scatter — more at spark