período
/peˈɾiodo/ · B1 · noun · m
time period
⏳ Greek peri (around) + hodos (way): a trip around, one full lap of time
Same root as English period, perimeter and odometer. The written accent puts the stress on -rí-: pe-RÍ-o-do. It is masculine, el período, and the unaccented spelling periodo is also correct.