Synonyms that are in the dictionary are marked in green. Synonyms that are not in the dictionary are marked in red.
Antonyms that are in the dictionary are marked in green. Antonyms that are not in the dictionary are marked in red.
For almost six weeks, the Icelandic authorities have been checking seismic activity close to Keflavik Airport, a major North Atlantic aviation hub.
Source: https://www.ibtimes.co.uk/it-safe-travel-iceland-amid-volcanic-eruption-1722288