Sentence:  It was imperative also for the social-minded pioneers to learn the styling and to know how to do the different dance steps required during a five- or six-figure cotillion or lancers. The dance steps included the polka, waltz, mazurka, <WSD>redowa</WSD> (two-step), and minuet. 
Meaning of the word marked with <WSD> tags:  A dance of Czech origin with turning, leaping waltz steps.