/ ˈfriːstaɪl; NAmE / noun , verb
■ noun [ U ]
1.
a swimming race in which people taking part can use any stroke they want (usually crawl ) :
the men's 400 m freestyle
2.
(often used as an adjective) a sports competition in which people taking part can use any style that they want :
freestyle skiing
■ verb
[ v ] to rap , play music, dance, etc. by inventing it as you do it, rather than by planning it in advance or following fixed patterns
SYN improvise