1. Achat risqué en vue d'un gain rapide.
2. Trafic. Spéculation immobilière.
3. (Philosophie) Réflexion.
4. Théorie.
ETYM Latin speculatio a spying out, observation: cf. French spéculation.
1. A hypothesis that has been formed by speculating or conjecturing (usually with little hard evidence); SYN. conjecture.
2. An investment that is very risky but could yield great profits; SYN. venture.