Ages ago vs Many years ago

When to use each in English, with meaning, register, and examples.

Ages ago

InformalTop 2,000 (common)

Many years ago

Top 2,000 (common)
Most formal: Many years ago
 Ages agoMany years ago
Pronunciation🇬🇧 //ˈeɪdʒɪz əˈɡəʊ//🇺🇸 //ˈeɪdʒɪz əˈɡoʊ//🇬🇧 //ˈmɛni jɪəz əˈɡoʊ//🇺🇸 //ˈmɛni jɪrz əˈɡoʊ//
MeaningA long time in the pastA long time in the past.
ExampleWe visited that place ages ago.Many years ago, my grandfather told me stories of his youth.
RegisterInformalNeutral
How commonTop 2,000 (common)Top 2,000 (common)
Collocationsremember ages ago, talk about ages ago, think back ages ago, come across ages ago, met ages agomany years ago, remember many years ago, think back many years ago
Common mistakesUsing 'age' instead of 'ages' for plural context., Not using it in appropriate casual situations., Confusing it with 'ages' meaning just a long time without the 'ago'.Misusing in present contexts, e.g., 'Many years ago, I am going to school.', Confused with 'a long time ago' which may feel more informal., Translating directly from other languages, leading to awkward phrasing.
Usage notesUsed in casual conversation to refer to a significant period of time that has passed. More appropriate in everyday speech than in formal writing.'Many years ago' is often used to introduce a story or memory from the past. It is appropriate in both spoken and written contexts but might be less formal in very formal writing.

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Ages ago
Many years ago

Frequently asked questions: Ages ago vs Many years ago

What's the difference between Ages ago and Many years ago?

Ages ago: A long time in the past Many years ago: A long time in the past.

Which is more formal: Ages ago and Many years ago?

Many years ago is the most formal of these.

Can you show an example of each?

Ages ago: We visited that place ages ago. Many years ago: Many years ago, my grandfather told me stories of his youth.

Can I use Ages ago and Many years ago interchangeably?

Not always. Ages ago and Many years ago are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.

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