Occur at the same time (8)
I believe the answer is:
coincide
(Other definitions for coincide that I've seen before include "Correspond" , "Happen together" , "match" , "Occur simultaneously" , "Happen simultaneously" .)
I believe the answer is:
coincide
(Other definitions for coincide that I've seen before include "Correspond" , "Happen together" , "match" , "Occur simultaneously" , "Happen simultaneously" .)