1. A set of people sharing a devotion to horses and horseback riding and horse racing
   - horsey set

Type of: band, circle, lot, set

• secretase
• secrete
• secreter
• secretin
• secretion
• secretive
• secretively
• secretiveness
• secretly
• secretor
• secretory
• secretory organ
• secretory phase
• sect
• sectarian
• sectarianism
• sectarist
• sectary
• sectile
• section
• Section Eight
• section gang
• section hand
• section man
• sectional