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I bet this two words has the same meaning, and my prediction might be one of
it are obsolete and the other one are frequently used by japanese people. Not
just in this case, how to self-crosscheck kanji on a word whether obsolete or
not?

Thanks in advance
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2017-07-27T07:46:13.580
51803
2017-07-27T09:09:25.160
19128
question
word-choice words
How to distinguish 具に with 備に ?
To check whether kanji are currently in use, you should use a Japanese native
language dictionary.

I looked your words up in goo's dictionary
(<https://dictionary.goo.ne.jp/jn/147982/meaning/m0u/>), because I was
unfamiliar with both 具に and 備に.

If you look at their entry, it's written like this:

> つぶさ‐に【▽具に／▽備に／×悉に】 の意味

The x means that the character 悉 is not part of Joyo orthography (Government-
mandated usage).

The down-triangle means the _reading_ of the character is not approved by Joyo
orthography. (Both 具 and 備 are characters in common use, but the reading is
technically not approved).

Joyo doesn't seem to absolute dictate usage on the ground, but as a non-native
speaker, I assume unless I frequently see otherwise, that one should not write
things with the ▽ and that Japanese people will not even recognize x kanji.
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2017-07-27T09:09:25.160
51807
2017-07-27T09:09:25.160
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51803
answer