rethink - definition and synonyms

verb [intransitive/transitive] 

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/ˌriːˈθɪŋk/
present tense
I/you/we/theyrethink
he/she/itrethinks
present participlerethinking
past tenserethought
past participlerethought
  1. to consider something such as an idea, plan, or system again in order to change it