What does adios mean?
Adios is an English word borrowed from Spanish that serves both as an exclamation of farewell and, less commonly, as a noun meaning a goodbye itself. It entered English through contact with Spanish speakers, particularly in the Americas, and is now a naturalized, informal way to take leave of someone. Compared with a neutral 'goodbye,' adios often carries a slightly warmer or more theatrical tone, sometimes suggesting a decisive or even permanent departure — which is why writers reach for it when they want a farewell with flair. Its etymology is striking: it derives from the Spanish phrase 'a Dios,' meaning 'to God,' a shortened form of a longer medieval valediction commending the departing person to God's care. This makes adios a cousin of the French 'adieu,' built on the same pious logic. Today it appears in everyday speech, song lyrics, and headlines, usually signaling a stylish exit rather than solemnity.
Used to express farewell; goodbye.
""Adios, my friends — until we meet again!" he called from the deck."
The dominant use; informal and often lighthearted or emphatic.
An act or instance of bidding farewell; a goodbye.
"Her resignation letter read less like a complaint than a graceful adios."
Usually singular; the plural 'adios' occurs mostly in informal or humorous contexts.
The plural is identical in form to the singular and is used informally, often playfully, to refer to multiple farewells.
"There were hugs, tears, and a chorus of adios as the exchange students boarded the bus."
When you say 'adios,' you are literally saying 'to God' — the Spanish phrase 'a Dios vos acomiendo' ('I commend you to God') was shortened over centuries into today's breezy two-syllable goodbye.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of adios
Adios comes from the Spanish 'adiós,' a contraction of 'a Dios,' meaning 'to God,' which itself descends from the Latin 'Deus.' The full medieval formula was something like 'a Dios vos acomiedo' — 'I commend you to God' — used when parting from someone whose safe return was uncertain. English adopted the word by the nineteenth century, especially through American contact with Spanish. It shares its ultimate root with words such as 'deity,' 'deify,' and 'divine,' all tracing back to the Latin word for god.
How adios is actually used
Informal and friendly in register, though it can carry a playful sense of finality — 'adios' often implies a more definite or dramatic departure than a plain 'goodbye.' It is fully naturalized in English and needs no italics.
Easily confused with adios
Adieu is the French equivalent farewell (literally 'to God'), whereas adios is the Spanish borrowing; both mean goodbye but come from different languages.