Synonyms for Fleet (same or very similar meaning)
WordNet sense 1 (move along rapidly and lightly; skim or dart):
dart, flit, flutter
WordNet sense 2 (moving very fast):
swift
WordNet sense 3 (acting or moving or capable of acting or moving quickly):
fast
WordNet sense 4 (disappear gradually):
fade, pass, evanesce, pass off, blow over
From the ODE community, based on WordNet
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