vb, -fied  -fy*ing vt  1  :  to make intense or more intensive  2 a  :  to increase the density and contrast of (a photographic image) by special treatment  b  :  to make more acute <use of illicit drugs intensifiedthe patient's condition>  vi  :  to become intense or more intensive  :  grow stronger or more acute <the sore throat, headache, and fever intensifiedas the disease progressed>  in*ten*si*fi*ca*tion n 
 
 
 
Similar sounding terms:  in·ten·sive 
 
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