The present participle of heighten; the act of making something higher, greater, or more intense.
Formed from 'heighten' (itself from 'height' plus -en suffix) plus the -ing suffix, creating a gerund or present participle form.
Architects and painters obsess over 'heightening' perspective through techniques discovered in Renaissance Italy—raising elements in composition literally and figuratively changes how viewers emotionally engage with the work.
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