To risk investment in property, shares, etc., in the hope of making a profit when selling them.

1590s, "view mentally, contemplate" (transitive), back-formation from speculation. Also formerly "view as from a watchtower" (1610s). Intransitive sense of "pursue truth by co [..]

to consider or guess.

to believe especially on uncertain or tentative grounds; "Scientists supposed that large dinosaurs lived in swamps" talk over conjecturally, or review in an idle or casual wa [..]

v. To pursue inquiries and form conjectures.

lat·ed -lat·ing vi 1 : to theorize on the basis of insufficient evidence NOTE: A jury is not permitted to speculate on a matter about which insufficient evidence has been presented in ...

(v) talk over conjecturally, or review in an idle or casual way and with an element of doubt or without sufficient reason to reach a conclusion(v) invest at a risk(v) to believe especially on uncertai [..]

To pick an opponent’s discard which produces a combination rather than a meld.

To take on a position with the intent of increasing return. The individual or firm that speculates does not use or supply the underlying commodity but is willing to assume some of the price risk associated with the commodity in order to earn a return. Speculators provide the market with liquidity.