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 way and with an element of doubt or without sufficient reason to reach a conclusion; "We were speculating whether the President had to resign after the scandal"
invest at a risk; "I bought this house not because I want to live in it but to sell it later at a good price, so I am speculating"
a conceptual whole made up of complicated and related parts; "the complex of shopping malls, houses, and roads created a new town"
(psychoanalysis) a combination of emotions and impulses that have been rejected from awareness but still influence a person's behavior
a compound described in terms of the central atom to which other atoms are bound or coordinated
complicated in structure; consisting of interconnected parts; "a complex set of variations based on a simple folk melody"; "a complex mass of diverse laws and customs"
a correctional institution used to detain persons who are in the lawful custody of the government (either accused persons awaiting trial or convicted persons serving a sentence)