unravel

definition: 
to organize;make clear
sentence: 
They were attempting to unravel the cause of death
difficulty: 
medium
toefl frequency: 
2
toefl classification: 
adverb: 
adjective: 
adverb sentence: 
adjective sentence: 
verb: 
verb sentence: 
noun: 
unraveling
noun sentence: 
The unravelling of the Soviet Union took place in the span of a few months