diff --git a/.changeset/soft-pans-attend.md b/.changeset/soft-pans-attend.md
new file mode 100644
index 0000000000..5cfc98ddaf
--- /dev/null
+++ b/.changeset/soft-pans-attend.md
@@ -0,0 +1,6 @@
+---
+"@khanacademy/math-input": minor
+"@khanacademy/perseus": minor
+---
+
+Allow learners to type trig operators in any language in the Expression widget
diff --git a/packages/math-input/src/components/input/mathquill-instance.ts b/packages/math-input/src/components/input/mathquill-instance.ts
index 1e930089bd..3ae21f2588 100644
--- a/packages/math-input/src/components/input/mathquill-instance.ts
+++ b/packages/math-input/src/components/input/mathquill-instance.ts
@@ -26,12 +26,17 @@ const createBaseConfig = (): MathFieldConfig => ({
         "arccos",
         "arcsin",
         "arctan",
+        "arctg",
         "arg",
         "cos",
+        "cosec",
+        "cossec",
         "cosh",
         "cot",
+        "cotg",
         "coth",
         "csc",
+        "ctg",
         "deg",
         "det",
         "dim",
@@ -58,6 +63,7 @@ const createBaseConfig = (): MathFieldConfig => ({
         "sup",
         "tan",
         "tanh",
+        "tg",
     ].join(" "),
 
     // Pop the cursor out of super/subscripts on arithmetic operators
diff --git a/packages/perseus/src/widgets/__tests__/expression.test.tsx b/packages/perseus/src/widgets/__tests__/expression.test.tsx
index 8a582ab1f9..dc1e134c61 100644
--- a/packages/perseus/src/widgets/__tests__/expression.test.tsx
+++ b/packages/perseus/src/widgets/__tests__/expression.test.tsx
@@ -198,16 +198,6 @@ describe("Expression Widget", function () {
             const item = expressionItemWithAnswer("sin(x)");
             assertIncorrect(item, "2");
         });
-
-        it("treats sen as equivalent to sin", () => {
-            const item = expressionItemWithAnswer("sin(x)");
-            assertCorrect(item, "sen x");
-        });
-
-        it("treats multiple usages of sen as equivalent to sin", () => {
-            const item = expressionItemWithAnswer("sin(sin(x))");
-            assertCorrect(item, "sen(sen(x))");
-        });
     });
 
     describe("analytics", () => {
@@ -256,6 +246,48 @@ describe("Expression Widget", function () {
             assertKeypadVersion(Object.freeze({}), "MATH_INPUT_KEYPAD_V2");
         });
     });
+
+    describe("international trig operators", () => {
+        it("treats sen as equivalent to sin", () => {
+            const item = expressionItemWithAnswer("sin(x)");
+            assertCorrect(item, "sen x");
+        });
+
+        it("works when multiple operators are present", () => {
+            const item = expressionItemWithAnswer("sin(sin(x))");
+            assertCorrect(item, "sen(sen(x))");
+        });
+
+        it("treats arctg as equivalent to arctan", () => {
+            const item = expressionItemWithAnswer("arctan(x)");
+            assertCorrect(item, "arctg x");
+        });
+
+        it("treats cosec as equivalent to csc", () => {
+            const item = expressionItemWithAnswer("csc(x)");
+            assertCorrect(item, "cosec x");
+        });
+
+        it("treats cossec as equivalent to csc", () => {
+            const item = expressionItemWithAnswer("csc(x)");
+            assertCorrect(item, "cossec x");
+        });
+
+        it("treats cotg as equivalent to cot", () => {
+            const item = expressionItemWithAnswer("cot(x)");
+            assertCorrect(item, "cotg x");
+        });
+
+        it("treats ctg as equivalent to cot", () => {
+            const item = expressionItemWithAnswer("cot(x)");
+            assertCorrect(item, "ctg x");
+        });
+
+        it("treats tg as equivalent to tan", () => {
+            const item = expressionItemWithAnswer("tan(x)");
+            assertCorrect(item, "tg x");
+        });
+    });
 });
 
 describe("getOneCorrectAnswerFromRubric", () => {
diff --git a/packages/perseus/src/widgets/expression.tsx b/packages/perseus/src/widgets/expression.tsx
index a9f6417bf7..b9574d7ded 100644
--- a/packages/perseus/src/widgets/expression.tsx
+++ b/packages/perseus/src/widgets/expression.tsx
@@ -35,11 +35,25 @@ type InputPath = ReadonlyArray<string>;
 const ERROR_TITLE = i18n._("Oops!");
 const ERROR_MESSAGE = i18n._("Sorry, I don't understand that!");
 
+// Map of international operator names to their English equivalents
+const englishOperators = {
+    arctg: "arctan",
+    cosec: "csc",
+    cossec: "csc",
+    cotg: "cot",
+    ctg: "cot",
+    sen: "sin",
+    tg: "tan",
+};
+
 const anglicizeOperators = (tex: string): string => {
     // sen is used instead of sin in some languages, e.g. Portuguese.
     // To ensure that answers in various languages are graded correctly, we
     // convert operators to their Englishy forms.
-    return tex.replace(/\\operatorname{sen}/g, "\\sin ");
+    return tex.replace(
+        /\\operatorname{([a-z]+)}/g,
+        (_, op) => `\\${englishOperators[op] ?? op} `,
+    );
 };
 
 const normalizeTex = (tex: string): string => {