"interval" in the noun sense
1. time interval, interval
a definite length of time marked off by two instants
2. interval
a set containing all points (or all real numbers) between two given endpoints
3. interval, separation
the distance between things
"fragile items require separation and cushioning"
4. interval, musical interval
the difference in pitch between two notes
Source: WordNet® (An amazing lexical database of English)
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