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.
Back in the 19th century, a cannon was fired at 1pm precisely in Newcastle Harbour to allow sea captains to adjust their ship chronometers to enable more accurate navigation while at sea in those far away days before satellites and modern GPS.