The Clue
Terminal info (3 letter answer)
The Answer
ETA
Tags
Notes
The answer ETA is very common and appears about once every 25 puzzles.
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In-flight announcement, for short
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Flight projection, briefly
Posting at SFO or LAX
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Info for an airport greeter, for short
Definition
ETA as a noun:
1. (Basque Homeland and Freedom, Basque Fatherland and Liberty, Euskadi ta Askatasuna, ETA) = a terrorist organization organized in 1959 by student activists who were dissatisfied with the moderate nationalism of the traditional Basque party; want to create on independent homeland in Spain's western Pyrenees; "in 1968 ETA launched a campaign of political assassinations of government officials"
2. the 7th letter of the Greek alphabet