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"
keep in mind or convey as a conviction or view; "take for granted"; "view as important"; "hold these truths to be self-evident"; "I hold him personally responsible"
form a critical opinion of; "I cannot judge some works of modern art"; "How do you evaluate this grant proposal?" "We shouldn't pass judgment on other people"