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According to
[http://www.jisho.org/words?jap=%E3%81%9F%E3%81%A0&eng=&dict=edict](http://www.jisho.org/words?jap=%E3%81%9F%E3%81%A0&eng=&dict=edict),
ただ is a na-adjective.

People seem to use ただの exelucisvely, and I wonder what ただな means.

What does ただな mean?
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2015-02-06T12:13:05.670
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word-choice
Does ただな mean the same thing as ただの?
It's probably adverb ただ and interjecting particle な, which conveys a flavor
like "ok?"/ "sure?".
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2015-02-06T12:37:51.953
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As @nkjt said, notice that the modern _tada_ = "ordinary, free, as-is"
**isn't** listed as a na-adjective.

Perhaps you're thinking of the [直]{ただ} entry. Contrary to what the jisho.org
site says, this isn't a na-adjective. Rather, it's a **nari** -adjective – the
Classical Japanese ancestor to na-adjectives (notice jisho.org marks it as
"archaic"). _Tada-nari_ is a Classical adjective meaning "direct, straight,
only, normal".

Sources:

  * The Ōbunsha Classical Japanese dictionary has _tada-nari_ ;
  * The _Digital Daijirin_ entry for _tada_ [lists it](http://dictionary.goo.ne.jp/leaf/jn2/136674/m0u/%E3%81%9F%E3%81%A0/) as both a noun and a nari-adjective;
  * _Meikyō Kokugo Jiten_ doesn't list modern _tada_ as na-adjective, just as noun, adverb, or prefix.
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「ただ **な** 」 is NOT an adjective in the same way that 「きれいな」,「みごとな」, etc. are.
Thus, a noun _**cannot**_ follow 「ただな」.

「ただ **な** 」 is usually used like an _**interjection**_ at the beginning of a
sentence that is said in reply to a statement made by another person. It means
something along the lines of:

> "One thing that we have to consider is ~~", "One thing you shouldn't forget
> is ~~", "We can't go without mentioning ~~", etc.
>
> A feminine version is 「ただ **ね** 」. 「ただ **な** 」 sounds pretty masculine.

_**Other "ただ + particle" forms and their usages:**_

「ただ **で** 」 = "for free"

「ただ **の** 」 = "ordinary", "run-of-the-mill", etc. It can also mean "free (of
charge)".
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2015-02-06T13:35:59.417
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