Ages ago vs Long ago

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

Ages ago

InformalTop 2,000 (common)

Long ago

Top 2,000 (common)
Most formal: Long ago
 Ages agoLong ago
Pronunciation🇬🇧 //ˈeɪdʒɪz əˈɡəʊ//🇺🇸 //ˈeɪdʒɪz əˈɡoʊ//🇬🇧 //lɔːŋ əˈɡəʊ//🇺🇸 //lɔːŋ əˈɡoʊ//
MeaningA long time in the pasta long time in the past
ExampleWe visited that place ages ago.People believed in dragons long ago.
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 agolong ago, once long ago, long ago in history
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'.'Long ago' can be confused with 'long ago' vs 'a long time ago'., Learners sometimes mix up the order, saying 'ago long'.
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.Used in storytelling or when discussing history. Not suitable for formal writing.

See it in real clips

Ages ago
Long ago

Frequently asked questions: Ages ago vs Long ago

What's the difference between Ages ago and Long ago?

Ages ago: A long time in the past Long ago: a long time in the past

Which is more formal: Ages ago and Long ago?

Long ago is the most formal of these.

Can you show an example of each?

Ages ago: We visited that place ages ago. Long ago: People believed in dragons long ago.

Can I use Ages ago and Long ago interchangeably?

Not always. Ages ago and Long 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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