theorize

• theorise (British)

theory +‎ -ize. First use appears c. 1599 in the text A pil to purge melancholie.

• (Received Pronunciation) IPA^(key): /ˈθɪə.ɹaɪz/, /ˈθiː.ə.ɹaɪz/, /ˈθɪɹ.aɪz/

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• (General American) IPA^(key): /ˈθɪɹ.aɪz/, /ˈθi.ə.ɹaɪz/
• (General Australian) IPA^(key): /ˈθɪə.ɹɑɪz/, /ˈθiː.ə.ɹɑɪz/, /ˈθɪɹ.ɑɪz/

theorize (third-person singular simple present theorizes, present participle theorizing, simple past and past participle theorized)

1. (intransitive) To formulate a theory, especially about some specific subject.
2. (intransitive) To speculate.

• otherize