hypothesise hypothesis • hypothesist · · · Info · Definitions · Synonyms · Characters · · hypothesise · · Text Latin · · Script 11 · · Length 4 · · Syllables Definitions · · · (verb) to believe especially on uncertain or tentative grounds. Synonyms: speculate, theorize, theorise, conjecture, hypothesize, hypothecate, suppose. Example: "Scientists supposed that large dinosaurs lived in swamps." · · Verb Definition 1 Synonyms · · · speculate · · Synonym 1 theorize · · Synonym 2 theorise · · Synonym 3 conjecture · · Synonym 4 hypothesize · · Synonym 5 hypothecate · · Synonym 6 suppose · · Synonym 7 Characters · · e latin small letter e U+0065 h latin small letter h U+0068 i latin small letter i U+0069 o latin small letter o U+006F p latin small letter p U+0070 s latin small letter s U+0073 t latin small letter t U+0074 y latin small letter y U+0079