fifteen seconds
- briefShort in duration
- momentBrief period of time
- countdownBackward enumeration to zero
- timerDuration-tracking mechanism
- clockDevice displaying time
tick · flash · instant · quick · commercial · timeout · buzzer · quarter · basketball · fame · Warhol · delay · pause · interval · blink · heartbeat · rush · snapshot
significance/ephemerality
fifteen secondslasting legacy
Influence surviving its source
immortality · timeless · long-term impact · permanence · staying power