English Noun time interval (plural time intervals) A period of time with fixed, well-defined limits. Synonyms intervalinterval of timeinterval timeperiodperiod of timespantimetime periodtime span, timespan Hyponyms life span, lifespan, lifetime time slot, timeslot Translations a period of time with fixed, well-defined limits Finnish: aikaväli (fi) German: Zeitintervall n Hungarian: időintervallum (hu) Norwegian: tidsintervall n, tidsrom (no) n, periode (no) Romanian: interval de timp n Swedish: tidsintervall (sv) c or n Wikiwand - on Seamless Wikipedia browsing. On steroids.