Vanishing Tweets, Feature Tested in 2020-21
This page is the CodyCross answer for the clue below from Tracking Time, Group 1056, Puzzle 4 (Celestial Navigation).
Question is: Vanishing Tweets, Feature Tested in 2020-21
and the answer is: FLEETS
Word Meaning:
FLEETS — plural of fleet
Definitions from Wiktionary.