hy ‧ poth ‧ e ‧ size AC BrE AmE ( also hypothesise British English ) /haɪˈpɒθəsaɪz $ -ˈpɑː-/ verb [intransitive and transitive]
[ Word Family: verb : ↑ hypothesize ; noun : ↑ hypothesis ; adverb : ↑ hypothetically ; adjective : ↑ hypothetical ]
to suggest a possible explanation that has not yet been proved to be true
hypothesize that
Scientists hypothesize that the dinosaurs were killed by a giant meteor.