speculation
US /ˌspek.jəˈleɪ.ʃən/
UK /ˌspek.jəˈleɪ.ʃən/

1.
猜测, 推测
the forming of a theory or conjecture without firm evidence
:
•
His disappearance has led to much speculation.
他的失踪引发了许多猜测。
•
There was widespread speculation that he would resign.
普遍猜测他会辞职。
2.
投机, 风险投资
investment in stocks, property, or other ventures in the hope of gain but with the risk of loss
:
•
He made his fortune through shrewd financial speculation.
他通过精明的金融投机发了财。
•
The real estate market is prone to periods of intense speculation.
房地产市场容易出现剧烈的投机时期。