diff --git a/docs/quick-start/call.md b/docs/quick-start/call.md
index bbfc2a23..4899a5d6 100644
--- a/docs/quick-start/call.md
+++ b/docs/quick-start/call.md
@@ -13,7 +13,7 @@ For methods, `call_method` can be used.
 + `PyObject* call(PyObject* obj, ...)`
 + `PyObject* call_method(PyObject* obj, StrName name, ...)`
 
-### Exmaple
+### Example
 
 Let's create a `dict` object and set a key-value pair,
 which equals to the following python snippet.
diff --git a/docs/quick-start/installation.md b/docs/quick-start/installation.md
index ed9d20df..b7d7ccff 100644
--- a/docs/quick-start/installation.md
+++ b/docs/quick-start/installation.md
@@ -143,7 +143,7 @@ The constructor can take 1 extra parameters.
 
 #### `VM(bool enable_os=true)`
 
-+ `enable_os`, whether to enable OS-related features or not. This setting controls the availability of priviledged modules such os `io` and `os` as well as builtin function `open`. **It is designed for sandboxing.**
++ `enable_os`, whether to enable OS-related features or not. This setting controls the availability of privileged modules such os `io` and `os` as well as builtin function `open`. **It is designed for sandboxing.**
 
 When you are done with the `VM` instance, use `delete` operator to dispose it.
 
diff --git a/docs/unity/introduction.md b/docs/unity/introduction.md
index 8832dd9f..b76117f6 100644
--- a/docs/unity/introduction.md
+++ b/docs/unity/introduction.md
@@ -57,7 +57,7 @@ PocketPython provides a sandboxed Python environment.
 All python code is executed in a C# virtual machine.
 The user cannot access the file system, network, or any other resources of the host machine.
 
-### Seemless Interop with C#
+### Seamless Interop with C#
 
 PocketPython uses `object` in C# to represent dynamic typed Python objects.
 Most of the basic Python types correspond to a C# type,
diff --git a/include/pocketpy/config.h b/include/pocketpy/config.h
index 21eb80f2..284e68bf 100644
--- a/include/pocketpy/config.h
+++ b/include/pocketpy/config.h
@@ -9,18 +9,18 @@
 /*************** feature settings ***************/
 
 // Whether to compile os-related modules or not
-#ifndef PK_ENABLE_OS                // can be overrided by cmake
+#ifndef PK_ENABLE_OS                // can be overridden by cmake
 #define PK_ENABLE_OS                0
 #endif
 
 // Enable this if you are working with multi-threading (experimental)
 // This triggers necessary locks to make the VM thread-safe
-#ifndef PK_ENABLE_THREAD            // can be overrided by cmake
+#ifndef PK_ENABLE_THREAD            // can be overridden by cmake
 #define PK_ENABLE_THREAD            0
 #endif
 
 // GC min threshold
-#ifndef PK_GC_MIN_THRESHOLD         // can be overrided by cmake
+#ifndef PK_GC_MIN_THRESHOLD         // can be overridden by cmake
 #define PK_GC_MIN_THRESHOLD         32768
 #endif
 
diff --git a/src/collections.cpp b/src/collections.cpp
index 65a17f1a..79e6cece 100644
--- a/src/collections.cpp
+++ b/src/collections.cpp
@@ -220,7 +220,7 @@ namespace pkpy
                          newDeque.insertObj(false, true, -1, *it);
                      return newDequeObj;
                  });
-        // NEW: counts the number of occurences of the given object in the deque
+        // NEW: counts the number of occurrences of the given object in the deque
         vm->bind(type, "count(self, obj) -> int",
                  [](VM *vm, ArgsView args)
                  {
@@ -290,7 +290,7 @@ namespace pkpy
                          self.insertObj(false, false, index, obj); // this index shouldn't be fixed using vm->normalized_index, pass as is
                      return vm->None;
                  });
-        // NEW: removes the first occurence of the given object from the deque
+        // NEW: removes the first occurrence of the given object from the deque
         vm->bind(type, "remove(self, obj) -> None",
                  [](VM *vm, ArgsView args)
                  {
@@ -450,7 +450,7 @@ namespace pkpy
     /// @brief pops or removes an item from the deque
     /// @param front  if true, pop from the front of the deque
     /// @param back if true, pop from the back of the deque
-    /// @param item if front and back is not set, remove the first occurence of item from the deque
+    /// @param item if front and back is not set, remove the first occurrence of item from the deque
     /// @param vm is needed for the py_eq
     /// @return PyObject* if front or back is set, this is a pop operation and we return a PyObject*, if front and back are not set, this is a remove operation and we return the removed item or nullptr
     PyObject *PyDeque::popObj(bool front, bool back, PyObject *item, VM *vm)
diff --git a/src/expr.cpp b/src/expr.cpp
index 8c9ed9cb..791e3a8c 100644
--- a/src/expr.cpp
+++ b/src/expr.cpp
@@ -591,7 +591,7 @@ namespace pkpy{
                 ctx->emit_(OP_CALL_TP, 0, line);
             }
         }else{
-            // vectorcall protocal
+            // vectorcall protocol
             for(auto& item: args) item->emit_(ctx);
             for(auto& item: kwargs){
                 uint16_t index = StrName(item.first.sv()).index;