"footprint" in the noun sense

1. footprint, footmark, step

a mark of a foot or shoe on a surface

"the police made casts of the footprints in the soft earth outside the window"

2. footprint

a trace suggesting that something was once present or felt or otherwise important

"the footprints of an earlier civilization"

3. footprint

the area taken up by some object

"the computer had a desktop footprint of 10 by 16 inches"

Source: WordNet® (An amazing lexical database of English)

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