<entry id="2279348" stat="A" corpus="jmdict" type="jmdict">
<ent_corp type="jmdict">jmdict</ent_corp>
<ent_seq>1230370</ent_seq>
<k_ele>
<keb>給料日</keb>
<ke_pri>spec2</ke_pri>
</k_ele>
<r_ele>
<reb>きゅうりょうび</reb>
<re_pri>spec2</re_pri>
</r_ele>
<sense>
<pos>&n;</pos>
<gloss>payday</gloss>
<gloss>pay day</gloss>
</sense>
<info>
<audit time="2023-10-03 15:58:39" stat="A" unap="true">
<upd_name>Brian Krznarich</upd_name>
<upd_email>...address hidden...</upd_email>
<upd_detl>[spec1] maybe?

This item has no attached statistics at all, so maybe the parsers considered this 給料+日.  But it's quite common.

My own intuition is that "payday", one word, is taking over. (old movie titles are two words, new ones are one word....) Wikipedia headword is two words, but twitter seems 5-to-1 for "payday" on googits.</upd_detl>
<upd_refs>給料	4529704	  
給料日	613512	  &lt;-- the #1 collocation, higher than　が or は
給料が	448289	    

https://en.wikipedia.org/wiki/Pay_Day
A pay day or payday is a specified day of the week or month when one is paid...</upd_refs>
<upd_diff>@@ -12,0 +13 @@
+&lt;gloss&gt;pay day&lt;/gloss&gt;</upd_diff>
</audit>
<audit time="2023-10-03 22:10:38" stat="A">
<upd_uid>jwb</upd_uid>
<upd_name>Jim Breen</upd_name>
<upd_email>...address hidden...</upd_email>
<upd_refs>payday 12682146
pay day 1054817</upd_refs>
</audit>
<audit time="2023-10-05 00:17:42" stat="A">
<upd_uid>robin1354</upd_uid>
<upd_name>Robin Scott</upd_name>
<upd_email>...address hidden...</upd_email>
<upd_detl>The current thresholds are
  spec1: &gt; 1m
  spec2: &gt; 500k</upd_detl>
<upd_diff>@@ -5,0 +6 @@
+&lt;ke_pri&gt;spec2&lt;/ke_pri&gt;
@@ -8,0 +10 @@
+&lt;re_pri&gt;spec2&lt;/re_pri&gt;</upd_diff>
</audit>
</info>
</entry>