<entry id="2224560" stat="D" corpus="jmdict" type="jmdict">
<ent_corp type="jmdict">jmdict</ent_corp>
<ent_seq>1628210</ent_seq>
<k_ele>
<keb>両刃の剣</keb>
</k_ele>
<r_ele>
<reb>りょうばのけん</reb>
</r_ele>
<sense>
<pos>&exp;</pos>
<pos>&n;</pos>
<xref type="see" seq="1344300">諸刃の剣</xref>
<gloss>double-edged sword</gloss>
</sense>
<info>
<audit time="2023-03-12 05:42:16" stat="A" unap="true">
<upd_name>Brian Krznarich</upd_name>
<upd_email>...address hidden...</upd_email>
<upd_detl>kokugos, online articles, and n-grams all seem to concur that these are synonymous,　up-to-and-including metaphoric usage, but the other form is preferable.

This was not previously marked as [exp], but the xref is.  Even though the metaphors align perfectly with English (or especially because they do), would it be appropriate to give an explanatory gloss?

As entered currently, it is not possible to know if these terms are safe to use in the English metaphorical way without looking it up somewhere else.</upd_detl>
<upd_refs>諸刃の剣	95288	82.2%
両刃の剣	20673	17.8%

諸刃の剣と両刃の剣の違いとは？意味や読み方・例文を解説
https://kokugoryokuup.com/moroha-ryouba/
ゆえに、「両刃の剣」の方の使用を排除したり否定したりすることはできないのです。
しかし、どちらを使うか？と問われればやはり「諸刃の剣」を使うのが無難ということになります。

【両刃の剣】と【諸刃の剣】の意味の違いと使い方の例文
https://reibuncnt.jp/27083

daijs:
諸刃もろはの剣つるぎ」に同じ。

Recent news article: コロナ自粛は両刃の剣
https://www.tokyo-np.co.jp/article/228190</upd_refs>
<upd_diff>@@ -11,0 +12,3 @@
+&lt;pos&gt;&amp;exp;&lt;/pos&gt;
+&lt;xref type="see" seq="1344300"&gt;諸刃の剣・もろはのつるぎ&lt;/xref&gt;
+&lt;xref type="see" seq="1344300"&gt;諸刃の剣・もろはのつるぎ&lt;/xref&gt;</upd_diff>
</audit>
<audit time="2023-03-12 07:09:37" stat="A">
<upd_uid>jwb</upd_uid>
<upd_name>Jim Breen</upd_name>
<upd_email>...address hidden...</upd_email>
<upd_diff>@@ -10,0 +11 @@
+&lt;pos&gt;&amp;exp;&lt;/pos&gt;
@@ -12,2 +13 @@
-&lt;pos&gt;&amp;exp;&lt;/pos&gt;
-&lt;xref type="see" seq="1344300"&gt;諸刃の剣・もろはのつるぎ&lt;/xref&gt;
+&lt;xref type="see" seq="1344300"&gt;諸刃の剣&lt;/xref&gt;</upd_diff>
</audit>
<audit time="2023-03-13 00:25:20" stat="A" unap="true">
<upd_name>Stephen Kraus</upd_name>
<upd_email>...address hidden...</upd_email>
<upd_refs>meikyo (entry for 両刃の剣):
  近年「もろはのけん」「りょうばのつるぎ」ともいうが、本来は「もろはのつるぎ」。

両刃 can be read もろは or りょうば, and 剣 can be read つるぎ or けん in this expression.
We can probably merge the entries together</upd_refs>
</audit>
<audit time="2023-03-13 04:00:40" stat="D">
<upd_uid>jwb</upd_uid>
<upd_name>Jim Breen</upd_name>
<upd_email>...address hidden...</upd_email>
<upd_detl>OK</upd_detl>
</audit>
</info>
</entry>