Football refers to a number of sports that involve, to varying degrees, kicking a ball with the foot to score a goal. Unqualified, the word football is understood to refer to whichever form of football is the most popular.
A rock festival, considered synonymous with pop festival, is considered to be a large-scale rock music concert, featuring multiple acts performing an often diverse range of popular music including rock, pop, folk, electronic, and related genres.
A half marathon is a road running event of 21.0975 kilometres (13.1094 mi). It is half the distance of a marathon and usually run on roads. Participation in half marathons has grown steadily.