- (Received Pronunciation) IPA(key): /ˈhɜːkjəliːz/, /ˈhɜːkjʊliːz/
- (US) IPA(key): /ˈhɝːkjəliːz/, /ˈhɝːkjʊliːz/
Audio (UK) (file)
- (Roman mythology) The Roman name for the Greek divine hero Heracles, who was the son of Jupiter and Alcmene, a celebrated hero who possessed exceptional strength. Most famous for his 12 labours performed to redeem himself after killing his family.
- (astronomy) A summer constellation of the northern sky, said to resemble the mythical hero. It lies between the constellations Lyra and Corona Borealis.
- (astronomy) A crater in the first quadrant on the moon.
- (rare, countable) A male given name from Ancient Greek
- A city in Contra Costa County, California, United States.
The Roman name of Heracles — See also translations at Heracles
Hercules (plural Hercules)
- (Classical) IPA(key): /ˈher.ku.leːs/, [ˈhɛrkʊɫ̪eːs̠]
- (Ecclesiastical) IPA(key): /ˈer.ku.les/, [ˈɛrkules]
- Although listed as a vocative, Hercle is properly an interjection and a religious oath/swear. The other vocative forms also occur in this function, often augmented by mĕ - see mehercule.
- The genitive and dative often found spelt as Herculei (read as /ˈher.ku.liː/ by Classical era) in manuscripts and inscriptions. 
- “Hercŭles”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
- “Hercules”, in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
- Hercŭlēs in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette, page 742/2
- “Herculēs” on page 791/3 of the Oxford Latin Dictionary (1st ed., 1968–82)
- ^ Corpus inscriptorum Latinarum vol. I pars II fasc. I, p.623 §1482 [= 1113] and p.626 §1503 [= 1145]. More properly: Theodorus Mommsen (editor), Inscriptiones latinae antiquissimae ad C. Caesaris mortem. Editio altera, fasciculus I, Berlin, 1918