diff --git a/spec/annexes.html b/spec/annexes.html
index 49f3bc80..d344487c 100644
--- a/spec/annexes.html
+++ b/spec/annexes.html
@@ -33,7 +33,7 @@ <h1>Implementation Dependent Behaviour</h1>
       In Locale:
       <ul>
         <li>
-          Support for the Unicode extensions keys *"kn"*, *"kf"* and the parallel options properties *"numeric"*, *"caseFirst"* (<emu-xref href="#sec-Intl.Locale"></emu-xref>)
+          Support for the Unicode extensions keys *"kf"*, *"kn"* and the parallel options properties *"caseFirst"*, *"numeric"* (<emu-xref href="#sec-Intl.Locale"></emu-xref>)
         </li>
       </ul>
     </li>
@@ -41,16 +41,16 @@ <h1>Implementation Dependent Behaviour</h1>
       In Collator:
       <ul>
         <li>
-          Support for the Unicode extensions keys *"kn"*, *"kf"* and the parallel options properties *"numeric"*, *"caseFirst"* (<emu-xref href="#sec-initializecollator"></emu-xref>)
+          Support for the Unicode extensions keys *"kf"*, *"kn"* and the parallel options properties *"caseFirst"*, *"numeric"* (<emu-xref href="#sec-initializecollator"></emu-xref>)
         </li>
         <li>
           The set of supported *"co"* key values (collations) per locale beyond a default collation (<emu-xref href="#sec-intl-collator-internal-slots"></emu-xref>)
         </li>
         <li>
-          The set of supported *"kn"* key values (numeric collation) per locale (<emu-xref href="#sec-intl-collator-internal-slots"></emu-xref>)
+          The set of supported *"kf"* key values (case order) per locale (<emu-xref href="#sec-intl-collator-internal-slots"></emu-xref>)
         </li>
         <li>
-          The set of supported *"kf"* key values (case order) per locale (<emu-xref href="#sec-intl-collator-internal-slots"></emu-xref>)
+          The set of supported *"kn"* key values (numeric collation) per locale (<emu-xref href="#sec-intl-collator-internal-slots"></emu-xref>)
         </li>
         <li>
           The default search sensitivity per locale (<emu-xref href="#sec-intl-collator-internal-slots"></emu-xref>)
diff --git a/spec/collator.html b/spec/collator.html
index a1912797..bf0951f2 100644
--- a/spec/collator.html
+++ b/spec/collator.html
@@ -122,11 +122,11 @@ <h1>Intl.Collator.supportedLocalesOf ( _locales_ [ , _options_ ] )</h1>
       <h1>Internal Slots</h1>
 
       <p>
-        The value of the [[AvailableLocales]] internal slot is implementation defined within the constraints described in <emu-xref href="#sec-internal-slots"></emu-xref>. The value of the [[RelevantExtensionKeys]] internal slot is a List that must include the element *"co"*, may include any or all of the elements *"kn"* and *"kf"*, and must not include any other elements.
+        The value of the [[AvailableLocales]] internal slot is implementation defined within the constraints described in <emu-xref href="#sec-internal-slots"></emu-xref>. The value of the [[RelevantExtensionKeys]] internal slot is a List that must include the element *"co"*, may include any or all of the elements *"kf"* and *"kn"*, and must not include any other elements.
       </p>
 
       <emu-note>
-        Unicode Technical Standard 35 describes ten locale extension keys that are relevant to collation: *"co"* for collator usage and specializations, *"ka"* for alternate handling, *"kb"* for backward second level weight, *"kc"* for case level, *"kn"* for numeric, *"kh"* for hiragana quaternary, *"kk"* for normalization, *"kf"* for case first, *"kr"* for reordering, *"ks"* for collation strength, and *"vt"* for variable top. Collator, however, requires that the usage is specified through the *"usage"* property of the options object, alternate handling through the *"ignorePunctuation"* property of the options object, and case level and the strength through the *"sensitivity"* property of the options object. The *"co"* key in the language tag is supported only for collator specializations, and the keys *"kb"*, *"kh"*, *"kk"*, *"kr"*, and *"vt"* are not allowed in this version of the Internationalization API. Support for the remaining keys is implementation dependent.
+        Unicode Technical Standard 35 describes ten locale extension keys that are relevant to collation: *"co"* for collator usage and specializations, *"ka"* for alternate handling, *"kb"* for backward second level weight, *"kc"* for case level, *"kf"* for case first, *"kh"* for hiragana quaternary, *"kk"* for normalization, *"kn"* for numeric, *"kr"* for reordering, *"ks"* for collation strength, and *"vt"* for variable top. Collator, however, requires that the usage is specified through the *"usage"* property of the options object, alternate handling through the *"ignorePunctuation"* property of the options object, and case level and the strength through the *"sensitivity"* property of the options object. The *"co"* key in the language tag is supported only for collator specializations, and the keys *"kb"*, *"kh"*, *"kk"*, *"kr"*, and *"vt"* are not allowed in this version of the Internationalization API. Support for the remaining keys is implementation dependent.
       </emu-note>
 
       <p>
diff --git a/spec/datetimeformat.html b/spec/datetimeformat.html
index 68e608c3..61e96caa 100644
--- a/spec/datetimeformat.html
+++ b/spec/datetimeformat.html
@@ -551,11 +551,11 @@ <h1>Internal slots</h1>
       </p>
 
       <p>
-        The value of the [[RelevantExtensionKeys]] internal slot is &laquo; *"ca"*, *"nu"*, *"hc"* &raquo;.
+        The value of the [[RelevantExtensionKeys]] internal slot is &laquo; *"ca"*, *"hc"*, *"nu"* &raquo;.
       </p>
 
       <emu-note>
-        Unicode Technical Standard 35 describes three locale extension keys that are relevant to date and time formatting, *"ca"* for calendar, *"tz"* for time zone, *"hc"* for hour cycle, and implicitly *"nu"* for the numbering system of the number format used for numbers within the date format. DateTimeFormat, however, requires that the time zone is specified through the *"timeZone"* property in the options objects.
+        Unicode Technical Standard 35 describes four locale extension keys that are relevant to date and time formatting: *"ca"* for calendar, *"hc"* for hour cycle, *"nu"* for numbering system (of formatted numbers), and *"tz"* for time zone. DateTimeFormat, however, requires that the time zone is specified through the *"timeZone"* property in the options objects.
       </emu-note>
 
       <p>
diff --git a/spec/numberformat.html b/spec/numberformat.html
index 88d5a1b6..a4213d42 100644
--- a/spec/numberformat.html
+++ b/spec/numberformat.html
@@ -784,7 +784,7 @@ <h1>Internal slots</h1>
       </p>
 
       <emu-note>
-        Unicode Technical Standard 35 describes two locale extension keys that are relevant to number formatting, *"nu"* for numbering system and *"cu"* for currency. Intl.NumberFormat, however, requires that the currency of a currency format is specified through the currency property in the options objects.
+        Unicode Technical Standard 35 describes two locale extension keys that are relevant to number formatting: *"cu"* for currency and *"nu"* for numbering system. Intl.NumberFormat, however, requires that the currency of a currency format is specified through the currency property in the options objects.
       </emu-note>
 
       <p>
diff --git a/spec/relativetimeformat.html b/spec/relativetimeformat.html
index f13292b1..e843259c 100644
--- a/spec/relativetimeformat.html
+++ b/spec/relativetimeformat.html
@@ -248,7 +248,7 @@ <h1>Internal slots</h1>
       </p>
 
       <emu-note>
-        Unicode Technical Standard 35 implicitly describes one locale extension key that is relevant to relative time formatting, "nu" for numbering system.
+        Unicode Technical Standard 35 describes one locale extension key that is relevant to relative time formatting: *"nu"* for numbering system (of formatted numbers).
       </emu-note>
 
       <p>