[ˈspɛkjʊleɪt], (Verb)

Definitions:
- form a theory or conjecture about a subject without firm evidence
(e.g: my colleagues speculate about my private life)

- invest in stocks, property, or other ventures in the hope of gain but with the risk of loss
(e.g: he didn't look as though he had the money to speculate in shares)


Phrases:

Origin:
late 16th century: from Latin speculat- ‘observed from a vantage point’, from the verb speculari, from specula ‘watchtower’, from specere ‘to look’