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I would like to know whether I am right when I use "as" meaning: similar, equal or equivalent, and the comparative, "than", to point out a difference between the nouns.

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Generally, yes. Could you provide some examples? – Cerberus Apr 16 '11 at 17:38
I agree, an example would be good. – D W Apr 16 '11 at 18:53
Thanks, your answers make me understand the right way to use "as" and "than" better. – ILG Apr 24 '11 at 0:58

Yes that is correct and is described in formal detail in the book:

How English Works: A Grammar Practice Book With Answers

On page 88 it describes the usage of as:

We use as ... as to say that people or things are equal in some way.

On page 87 it says:

Than is used after comparatives.

On page 83 it says: We use comparatives to compare one person, thing, action or group with another person, thing, etc...


As a homework question, how is a comparative different than a superlative :)?

Also, you might benefit from doing the following quiz, specifically on this issue:


In fact, in your spare time, the whole site has excellent quizzes in general:


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