Idiom Definition:
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"to put two and two together"  
    to understand something by analyzing  clues or associating seemingly unconnected information      
            
Synonyms: 
analyze, ascertain, believe, conceive, conclude, conjecture, construe, deduct, derive, draw, figure, gather, glean, guess, imagine, induce, infer, interpret, intuit, presuppose, reason, reckon, speculate, suppose, surmise, think, understand
 
    
