An innovation?

[Andreana]

Hi, can the word innovation be countable? I mean can you say, the invention of the CD was an innvoation?
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[katarzyna]

Hi Andreana,

I think that you use ‘innovation' as an uncountable noun when it is used in general meaning [let’s say: the period of innovation (innovating)],

You use it as a countable noun when you think of a new technique, idea, etc. ‘It is the latest innovation in electronics./’The invention of CD resulted in the innovations in computer technology’.

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I found your question interesting

>>>>I mean can you say, the invention of the CD was an innovation? >>>

I’m not 100 percent sure but I think your sentence is correct. At least I have understood its meaning

[Mister Micawber]

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Yes, either countable or non-count.
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who teaches English for a living at Mister Micawber's
ESL cafe: Interview with Mister Micawber