United States tennis player who in 1938 was the first to win the Australian and French and English and United States singles championship in the same year (1915-2000)
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 person who is frightened and in need of help; "they prey on the hopes of the desperate"
showing extreme courage; especially of actions courageously undertaken in desperation as a last resort; "made a last desperate attempt to reach the climber"; "the desperate gallantry of our naval task forces marked the turning point in the Pacific war"- G.C.Marshall; "they took heroic measures to save his life"
fraught with extreme danger; nearly hopeless; "a desperate illness"; "on all fronts the Allies were in a desperate situation due to lack of materiel"- G.C.Marshall; "a dire emergency"
showing extreme urgency or intensity especially because of great need or desire; "felt a desperate urge to confess"; "a desperate need for recognition"
desperately determined; "do-or-die revolutionaries"; "a do-or-die conflict"
(of persons) dangerously reckless or violent as from urgency or despair; "a desperate criminal"; "taken hostage of desperate men"