IPA: //ˈskætərˌɡʌn//
KK: /ˈskætərˌɡʌn/
A type of firearm that fires multiple projectiles at once, often used for hunting or shooting sports.
The hunter used a scattergun to increase his chances of hitting the moving target.
Scattergun → The word is formed from "scatter" (from Old English *sceatrian*, meaning to separate or disperse) and "gun" (from Old English *gunne*, meaning a type of firearm). The term "scattergun" refers to a type of shotgun that disperses shot widely, hence the combination of separating and firearm.
Think of 'separating' things ('scatter') and a 'firearm' ('gun') — a scattergun is a firearm that spreads its shot widely.
No commonly confused words.