Greek

Noun

αιώνας • ‎(aiónas) m ‎(plural αιώνες)

1. century (100 consecutive years)
2. century (specifically a numbered period with conventional start)

   Έγινε στα μέσα του 20ου αιώνα.‎ ― Égine sta mésa tou 20ou aióna. ― It took place in the middle of the 20th century.

3. (geology) eon, era, age

   Φανεροζωικός αιώνας‎ ― Fanerozoikós aiónas ― Phanerozoic eon

4. eternity, age, eon

Declension

Synonyms

• (century): αι. ‎(ai.) (abbreviation)
• (eon): μεγααιώνας m ‎(megaaiónas)

Usage notes

"Proterozoic eon" will be found translated as "Προτεροζωικός αιώνας" and "Προτεροζωικός μεγααιώνας". The form "αιώνας" can mean any long period (age, century, etc) so "μεγααιώνας" - large eon - is often used to make the meaning clear.

Related terms

• αιώνια ‎(aiónia, “forever”)
• αιώνιος ‎(aiónios, “eternal, perpetual”)
• αιωνιότητα f ‎(aioniótita, “eternity”)
• αιώνιως ‎(aiónios, “forever”)
• αιωνόβιος ‎(aionóvios, “long-living”)

Synonyms

• (abbreviation) αι. ‎(ai.)
• (eon): μεγααιώνας m ‎(megaaiónas) (geological timescale)
• (100 consecutive years): εκατονταετία f ‎(ekatontaetía)