diff --git a/icu4c/source/i18n/measunit_extra.cpp b/icu4c/source/i18n/measunit_extra.cpp
index d848965..c978565 100644
--- a/icu4c/source/i18n/measunit_extra.cpp
+++ b/icu4c/source/i18n/measunit_extra.cpp
@@ -496,19 +496,19 @@
             }
             bool added = result.append(singleUnit, status);
             if (sawPlus && !added) {
-                // Two similar units are not allowed in a sequence unit
+                // Two similar units are not allowed in a mixed unit
                 status = kUnitIdentifierSyntaxError;
                 return;
             }
             if ((++unitNum) >= 2) {
                 UMeasureUnitComplexity complexity = sawPlus
-                    ? UMEASURE_UNIT_SEQUENCE
+                    ? UMEASURE_UNIT_MIXED
                     : UMEASURE_UNIT_COMPOUND;
                 if (unitNum == 2) {
                     U_ASSERT(result.complexity == UMEASURE_UNIT_SINGLE);
                     result.complexity = complexity;
                 } else if (result.complexity != complexity) {
-                    // Mixed sequence and compound units
+                    // Can't have mixed compound units
                     status = kUnitIdentifierSyntaxError;
                     return;
                 }
@@ -589,7 +589,7 @@
         return;
     }
     if (impl.complexity == UMEASURE_UNIT_COMPOUND) {
-        // Note: don't sort a SEQUENCE unit
+        // Note: don't sort a MIXED unit
         uprv_sortArray(
             impl.units.getAlias(),
             impl.units.length(),
@@ -609,7 +609,7 @@
     for (int32_t i = 1; i < impl.units.length(); i++) {
         const SingleUnitImpl& prev = *impl.units[i-1];
         const SingleUnitImpl& curr = *impl.units[i];
-        if (impl.complexity == UMEASURE_UNIT_SEQUENCE) {
+        if (impl.complexity == UMEASURE_UNIT_MIXED) {
             impl.identifier.append("-and-", status);
             serializeSingle(curr, true, impl.identifier, status);
         } else {
@@ -753,7 +753,7 @@
     MeasureUnitImpl impl = MeasureUnitImpl::forMeasureUnitMaybeCopy(*this, status);
     MeasureUnitImpl temp;
     const MeasureUnitImpl& otherImpl = MeasureUnitImpl::forMeasureUnit(other, temp, status);
-    if (impl.complexity == UMEASURE_UNIT_SEQUENCE || otherImpl.complexity == UMEASURE_UNIT_SEQUENCE) {
+    if (impl.complexity == UMEASURE_UNIT_MIXED || otherImpl.complexity == UMEASURE_UNIT_MIXED) {
         status = U_ILLEGAL_ARGUMENT_ERROR;
         return {};
     }
diff --git a/icu4c/source/i18n/measunit_impl.h b/icu4c/source/i18n/measunit_impl.h
index 5d2e6b1..cf0ea63 100644
--- a/icu4c/source/i18n/measunit_impl.h
+++ b/icu4c/source/i18n/measunit_impl.h
@@ -82,7 +82,7 @@
 
 /**
  * Internal representation of measurement units. Capable of representing all complexities of units,
- * including sequence and compound units.
+ * including mixed and compound units.
  */
 struct MeasureUnitImpl : public UMemory {
     /** Extract the MeasureUnitImpl from a MeasureUnit. */
@@ -151,7 +151,7 @@
     /** Mutates this MeasureUnitImpl to append a single unit. */
     bool append(const SingleUnitImpl& singleUnit, UErrorCode& status);
 
-    /** The complexity, either SINGLE, COMPOUND, or SEQUENCE. */
+    /** The complexity, either SINGLE, COMPOUND, or MIXED. */
     UMeasureUnitComplexity complexity = UMEASURE_UNIT_SINGLE;
 
     /**
diff --git a/icu4c/source/i18n/unicode/measunit.h b/icu4c/source/i18n/unicode/measunit.h
index 9353159..9aacfed 100644
--- a/icu4c/source/i18n/unicode/measunit.h
+++ b/icu4c/source/i18n/unicode/measunit.h
@@ -40,8 +40,8 @@
  *           square-kilometer, kilojoule, one-per-second.
  * - COMPOUND: A unit composed of the product of multiple single units. Examples:
  *             meter-per-second, kilowatt-hour, kilogram-meter-per-square-second.
- * - SEQUENCE: A unit composed of the sum of multiple single units. Examples: foot+inch,
- *             hour+minute+second, degree+arcminute+arcsecond.
+ * - MIXED: A unit composed of the sum of multiple single units. Examples: foot+inch,
+ *          hour+minute+second, degree+arcminute+arcsecond.
  *
  * The complexity determines which operations are available. For example, you cannot set the power
  * or SI prefix of a compound unit.
@@ -64,11 +64,11 @@
     UMEASURE_UNIT_COMPOUND,
 
     /**
-     * A sequence unit, like hour+minute.
+     * A mixed unit, like hour+minute.
      *
      * @draft ICU 67
      */
-    UMEASURE_UNIT_SEQUENCE
+    UMEASURE_UNIT_MIXED
 };
 
 /**
@@ -258,14 +258,14 @@
     MeasureUnit(MeasureUnit &&other) noexcept;
 
     /**
-     * Construct a MeasureUnit from a CLDR Sequence Unit Identifier, defined in UTS 35.
+     * Construct a MeasureUnit from a CLDR Unit Identifier, defined in UTS 35.
      * Validates and canonicalizes the identifier.
      *
      * <pre>
      * MeasureUnit example = MeasureUnit::forIdentifier("furlong-per-nanosecond")
      * </pre>
      *
-     * @param identifier The CLDR Sequence Unit Identifier
+     * @param identifier The CLDR Unit Identifier
      * @param status Set if the identifier is invalid.
      * @draft ICU 67
      */
@@ -335,7 +335,7 @@
 
 #ifndef U_HIDE_DRAFT_API
     /**
-     * Get the CLDR Sequence Unit Identifier for this MeasureUnit, as defined in UTS 35.
+     * Get the CLDR Unit Identifier for this MeasureUnit, as defined in UTS 35.
      *
      * @return The string form of this unit, owned by this MeasureUnit.
      * @draft ICU 67
@@ -357,7 +357,7 @@
      *
      * There is sufficient locale data to format all standard SI prefixes.
      *
-     * NOTE: Only works on SINGLE units. If this is a COMPOUND or SEQUENCE unit, an error will
+     * NOTE: Only works on SINGLE units. If this is a COMPOUND or MIXED unit, an error will
      * occur. For more information, see UMeasureUnitComplexity.
      *
      * @param prefix The SI prefix, from UMeasureSIPrefix.
@@ -371,7 +371,7 @@
      * Gets the current SI prefix of this SINGLE unit. For example, if the unit has the SI prefix
      * "kilo", then UMEASURE_SI_PREFIX_KILO is returned.
      *
-     * NOTE: Only works on SINGLE units. If this is a COMPOUND or SEQUENCE unit, an error will
+     * NOTE: Only works on SINGLE units. If this is a COMPOUND or MIXED unit, an error will
      * occur. For more information, see UMeasureUnitComplexity.
      *
      * @param status Set if this is not a SINGLE unit or if another error occurs.
@@ -384,7 +384,7 @@
      * Creates a MeasureUnit which is this SINGLE unit augmented with the specified dimensionality
      * (power). For example, if dimensionality is 2, the unit will be squared.
      *
-     * NOTE: Only works on SINGLE units. If this is a COMPOUND or SEQUENCE unit, an error will
+     * NOTE: Only works on SINGLE units. If this is a COMPOUND or MIXED unit, an error will
      * occur. For more information, see UMeasureUnitComplexity.
      *
      * @param dimensionality The dimensionality (power).
@@ -398,7 +398,7 @@
      * Gets the dimensionality (power) of this MeasureUnit. For example, if the unit is square,
      * then 2 is returned.
      *
-     * NOTE: Only works on SINGLE units. If this is a COMPOUND or SEQUENCE unit, an error will
+     * NOTE: Only works on SINGLE units. If this is a COMPOUND or MIXED unit, an error will
      * occur. For more information, see UMeasureUnitComplexity.
      *
      * @param status Set if this is not a SINGLE unit or if another error occurs.
@@ -412,10 +412,10 @@
      *
      * For example, if the receiver is "meter-per-second", the unit "second-per-meter" is returned.
      *
-     * NOTE: Only works on SINGLE and COMPOUND units. If this is a SEQUENCE unit, an error will
+     * NOTE: Only works on SINGLE and COMPOUND units. If this is a MIXED unit, an error will
      * occur. For more information, see UMeasureUnitComplexity.
      *
-     * @param status Set if this is a SEQUENCE unit or if another error occurs.
+     * @param status Set if this is a MIXED unit or if another error occurs.
      * @return The reciprocal of the target unit.
      * @draft ICU 67
      */
@@ -431,10 +431,10 @@
      * unit "kilowatt-hour-per-day" is returned.
      *
      * NOTE: Only works on SINGLE and COMPOUND units. If either unit (receivee and argument) is a
-     * SEQUENCE unit, an error will occur. For more information, see UMeasureUnitComplexity.
+     * MIXED unit, an error will occur. For more information, see UMeasureUnitComplexity.
      *
      * @param other The MeasureUnit to multiply with the target.
-     * @param status Set if this or other is a SEQUENCE unit or if another error occurs.
+     * @param status Set if this or other is a MIXED unit or if another error occurs.
      * @return The product of the target unit with the provided unit.
      * @draft ICU 67
      */
@@ -443,7 +443,7 @@
 
 #ifndef U_HIDE_INTERNAL_API
     /**
-     * Gets the list of SINGLE units contained within a SEQUENCE of COMPOUND unit.
+     * Gets the list of SINGLE units contained within a MIXED of COMPOUND unit.
      *
      * Examples:
      * - Given "meter-kilogram-per-second", three units will be returned: "meter",
diff --git a/icu4c/source/test/intltest/measfmttest.cpp b/icu4c/source/test/intltest/measfmttest.cpp
index 4846540..6f6c14c 100644
--- a/icu4c/source/test/intltest/measfmttest.cpp
+++ b/icu4c/source/test/intltest/measfmttest.cpp
@@ -152,7 +152,7 @@
         const char* identifier,
         const char** subIdentifiers,
         int32_t subIdentifierCount);
-    void verifySequenceUnit(
+    void verifyMixedUnit(
         const MeasureUnit& unit,
         const char* identifier,
         const char** subIdentifiers,
@@ -3368,10 +3368,10 @@
     MeasureUnit inchFoot = MeasureUnit::forIdentifier("inch-and-foot", status);
 
     const char* footInchSub[] = {"foot", "inch"};
-    verifySequenceUnit(footInch, "foot-and-inch",
+    verifyMixedUnit(footInch, "foot-and-inch",
         footInchSub, UPRV_LENGTHOF(footInchSub));
     const char* inchFootSub[] = {"inch", "foot"};
-    verifySequenceUnit(inchFoot, "inch-and-foot",
+    verifyMixedUnit(inchFoot, "inch-and-foot",
         inchFootSub, UPRV_LENGTHOF(inchFootSub));
 
     assertTrue("order matters inequality", footInch != inchFoot);
@@ -3575,12 +3575,12 @@
     }
 }
 
-void MeasureFormatTest::verifySequenceUnit(
+void MeasureFormatTest::verifyMixedUnit(
         const MeasureUnit& unit,
         const char* identifier,
         const char** subIdentifiers,
         int32_t subIdentifierCount) {
-    IcuTestErrorCode status(*this, "verifySequenceUnit");
+    IcuTestErrorCode status(*this, "verifyMixedUnit");
     UnicodeString uid(identifier, -1, US_INV);
     assertEquals(uid + ": Identifier",
         identifier,
@@ -3590,7 +3590,7 @@
         unit == MeasureUnit::forIdentifier(identifier, status));
     status.errIfFailureAndReset("%s: Constructor", identifier);
     assertEquals(uid + ": Complexity",
-        UMEASURE_UNIT_SEQUENCE,
+        UMEASURE_UNIT_MIXED,
         unit.getComplexity(status));
     status.errIfFailureAndReset("%s: Complexity", identifier);