1. a person who invests in stocks, property, or other ventures in the hope of making a profit from fluctuations in their value
Usage: finance
2. a person who forms theories or conjectures about a subject without firm evidence

Examples

• The real estate speculator bought several properties hoping their values would rise.
• Currency speculators made huge profits during the market volatility.
• Many speculators lost money when the tech bubble burst.
• Oil speculators drove up prices by betting on future shortages.
• He was merely a speculator, offering theories without solid proof.
• The philosopher was criticized as a speculator rather than a rigorous thinker.