The Clue
O'Hare monitor abbr. (3 letter answer)
The Answer
ETA
Tags
Notes
The answer ETA is very common and appears about once every 25 puzzles.
Related Clues
Abbr. at O'Hare
After zeta
Airport abbr.
Before theta
Fraternity chapter
Fraternity letter
Greek H
Greek letter
Greek vowel
H, to Herodotus
Itinerary abbr.
J.F.K. initials
J.F.K. letters
Kennedy letters
KLM announcement
LAX abbr.
LAX datum
Letter from Greece
O'Hare abbr.
SAS announcement
Sorority letter
Tea anagram
Timetable abbr.
Air ticket info
Airplane announcement, for short
Announcement at Penn Sta.
Between zeta and theta
In-flight P.A. announcement
Gate guess: Abbr.
Honor society letter
It's after zeta
It's H-shaped
Pariah, Japanese style
Pilot's update, for short
Posting at SFO or LAX
Projection in the air, for short
Secret-society letter
Seventh Greek letter
Touchdown point?: Abbr.
Airport flight info: Abbr.
Announcement over a plane's P.A.
When the pilot is due in, 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