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Antonyms that are in the dictionary are marked in green. Antonyms that are not in the dictionary are marked in red.
Ancillary fees arrived in the 1990s with the emergence of budget airlines such as Ryanair and EasyJet, but they have spread to bigger carriers, says John Grant, senior analyst at OAG, an aviation data firm.
Source: https://www.bbc.co.uk/news/technology-66538912?at_medium=RSS&at_campaign=KARANGA