S: (n) horsy set, horsey set (a set of people sharing a devotion to horses and horseback riding and horse racing)
S: (n) jet set (a set of rich and fashionable people who travel widely for pleasure)
S: (n) party, company (a band of people associated temporarily in some activity) "they organized a party to search for food"; "the company of cooks walked into the kitchen"
W: (adj) conspiratorial [Related to: conspiracy] (relating to or characteristic of conspiracy or conspirators) "a conspiratorial whisper"; "the discovery of possible conspirative codes"
S: (n) conspiracy, confederacy (a secret agreement between two or more people to perform an unlawful act)