ostent UK /ɒˈstɛnt/US /ɑˈstɛnt/noun 3/ˈɑstɛnt/ noun 1/ˈɑstɛnt/ verb 1forms 4 noun3 •A boastful, ostentatious display or exhibition. •(no longer used, rare) A display, an exhibition; an appearance, a manifestation.Vse all the obseruance of ciuility, / Like one well studied in a sad ostent / To please his Grandam, neuer trust me more. — 1596 •(no longer used, historical) One sixtieth of an hour: a minute (60 seconds). ostent UK /ˈɒstɛnt/US /ˈɑstɛnt/ noun1 •(no longer used, rare) A portent, a token.We ask'd of God that some ostent might clear / Our cloudy business, who gave us sign. — 1614 verb1 •(no longer used) To make an ambitious display of; to exhibit or show boastingly; to ostentate. formsostented · ostenting · ostents · ostenta