conjecture - definition and synonyms

verb [intransitive/transitive] formal 

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/kənˈdʒektʃə(r)/
present tense
I/you/we/theyconjecture
he/she/itconjectures
present participleconjecturing
past tenseconjectured
past participleconjectured
  1. to decide that something is true or likely based on the information that you have