Meaning of Words

speculation
-noun
1. the contemplation or consideration of some subject: to engage in speculation on humanity's ultimate destiny.
2. a single instance or process of consideration.
3. a conclusion or opinion reached by such contemplation: These speculations are impossible to verify.
4. conjectural consideration of a matter; conjecture or surmise: a report based on speculation rather than facts.
5. engagement in business transactions involving considerable risk but offering the chance of large gains, esp. trading in commodities, stocks, etc., in the hope of profit from changes in the market price.
6. a speculative commercial venture or undertaking.

speculate
-verb (used without object)
1. to engage in thought or reflection; meditate (often fol. by on, upon, or a clause).
2. to indulge in conjectural thought.
3. to engage in any business transaction involving considerable risk or the chance of large gains, esp. to buy and sell commodities, stocks, etc., in the expectation of a quick or very large profit.

Caution
-noun
1. alertness and prudence in a hazardous situation; care; wariness: Landslides ahead—proceed with caution.
2. a warning against danger or evil; anything serving as a warning: By way of caution, he told me the difficulties I would face.
3. Informal. a person or thing that astonishes or causes mild apprehension: She's a caution. The way he challenges your remarks is a caution.
–verb (used with object)
4. to give warning to; advise or urge to take heed.
–verb (used without object)
5. to warn or advise: The newspapers caution against overoptimism.