re ‧ think /riːˈθɪŋk/ BrE AmE verb ( past tense and past participle rethought /-ˈθɔːt $ -ˈθɒːt/) [intransitive and transitive]
[ Word Family: noun : ↑ think , ↑ rethink , ↑ thinker , ↑ thinking , the unthinkable; verb : ↑ think , ↑ rethink ; adjective : ↑ thinkable ≠ ↑ unthinkable , ↑ thinking ≠ ↑ unthinking ; adverb : ↑ unthinkingly ]
to think about a plan or idea again in order to decide if any changes should be made SYN reconsider :
an opportunity to rethink our policy on advertising
—rethink /ˈriːθɪŋk/ noun [singular] :
It’s time for a complete rethink of the way we farm our countryside.