edward has 13 distinct synonyms spread across 10 of its 10 senses. Each sense below keeps its own list, because a synonym belongs to a meaning and not to a word: swapping one sense's substitute into another sense's sentence is how a thesaurus makes writing worse. WordNet records no antonym for it — antonymy is a relation between word forms rather than concepts, so it is deliberately sparse.
Counts are distinct word forms across every sense. A synonym that appears under three senses is counted once here and shown three times below, under each sense it belongs to.
King of England and Ireland in 1936; his marriage to Wallis Warfield Simpson created a constitutional crisis leading to his abdication (1894-1972)
King of England from 1901 to 1910; son of Victoria and Prince Albert; famous for his elegant sporting ways (1841-1910)
King of England and Ireland from 1547 to 1553; son of Henry VIII and Jane Seymour; died of tuberculosis (1537-1553)
King of England who was crowned at the age of 13 on the death of his father Edward IV but was immediately confined to the Tower of London where he and his younger brother were murdered (1470-1483)
King of England from 1461 to 1470 and from 1471 to 1483; was dethroned in 1470 but regained the throne in 1471 by his victory at the battle of Tewkesbury (1442-1483)
son of Edward II and King of England from 1327-1377; his claim to the French throne provoked the Hundred Years' War; his reign was marked by an epidemic of the Black Plague and by the emergence of the House of Commons as the powerful arm of British Parliament (1312-1377)
King of England from 1307 to 1327 and son of Edward I; was defeated at Bannockburn by the Scots led by Robert the Bruce; was deposed and died in prison (1284-1327)
King of England from 1272 to 1307; conquered Wales (1239-1307)
third son of Elizabeth II (born in 1964)
son of Edward III who defeated the French at Crecy and Poitiers in the Hundred Years' War (1330-1376)
Synonyms, antonyms and the broader and narrower relations for edward come from Princeton University’s WordNet. Full sources and licences.