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ex·pire

vbex*pired  ex*pir*ing vi  1  :  to breathe one's last breath  :  DIE  2  :  to emit the breath vt  :  to breathe out from or as if from the lungs <the basal metabolism test … measures the amount of carbon dioxide expired by the lungs -J. D. Ratcliff>  .
 
 oftenest for vi 2 and vt   
 
Similar sounding terms:  ex·pi·ry 

 
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