IPA: //ˈwaɪdˌsprɛd//
KK: /ˈwaɪdˌsprɛd/
Something that is common or found in many places or among many people.
The use of smartphones has become widespread in recent years.
Widespread → It is formed from "wide" (from Old English *wīd*, meaning broad or extensive) and "spread" (from Old English *sperdan*, meaning to scatter or distribute). The word "widespread" means something that is broadly or extensively distributed or occurring.
Think of something that is 'broad' ('wide') and 'scattered' ('spread') across a large area — that's what widespread means.