diff --git a/cpp/include/cudf/scalar/scalar.hpp b/cpp/include/cudf/scalar/scalar.hpp
index a4dcb3fe2e6..24c356f1fd7 100644
--- a/cpp/include/cudf/scalar/scalar.hpp
+++ b/cpp/include/cudf/scalar/scalar.hpp
@@ -52,7 +52,7 @@ class scalar {
   /**
    * @brief Returns the scalar's logical value type.
    *
-   * @return The scalar's logical value type.
+   * @return The scalar's logical value type
    */
   [[nodiscard]] data_type type() const noexcept;
 
@@ -71,22 +71,22 @@ class scalar {
    * function does a stream synchronization.
    *
    * @param stream CUDA stream used for device memory operations.
-   * @return true Value is valid.
-   * @return false Value is invalid/null.
+   * @return true Value is valid
+   * @return false Value is invalid/null
    */
   [[nodiscard]] bool is_valid(rmm::cuda_stream_view stream = rmm::cuda_stream_default) const;
 
   /**
    * @brief Returns a raw pointer to the validity bool in device memory.
    *
-   * @return Raw pointer to the validity bool in device memory.
+   * @return Raw pointer to the validity bool in device memory
    */
   bool* validity_data();
 
   /**
    * @brief Return a const raw pointer to the validity bool in device memory.
    *
-   * @return Raw pointer to the validity bool in device memory.
+   * @return Raw pointer to the validity bool in device memory
    */
   [[nodiscard]] bool const* validity_data() const;
 
@@ -182,19 +182,19 @@ class fixed_width_scalar : public scalar {
    * @brief Get the value of the scalar.
    *
    * @param stream CUDA stream used for device memory operations.
-   * @return Value of the scalar.
+   * @return Value of the scalar
    */
   T value(rmm::cuda_stream_view stream = rmm::cuda_stream_default) const;
 
   /**
    * @brief Returns a raw pointer to the value in device memory.
-   * @return A raw pointer to the value in device memory.
+   * @return A raw pointer to the value in device memory
    */
   T* data();
 
   /**
    * @brief Returns a const raw pointer to the value in device memory.
-   * @return A const raw pointer to the value in device memory.
+   * @return A const raw pointer to the value in device memory
    */
   T const* data() const;
 
@@ -388,7 +388,7 @@ class fixed_point_scalar : public scalar {
    * @brief Get the value of the scalar.
    *
    * @param stream CUDA stream used for device memory operations.
-   * @return The value of the scalar.
+   * @return The value of the scalar
    */
   rep_type value(rmm::cuda_stream_view stream = rmm::cuda_stream_default) const;
 
@@ -396,7 +396,7 @@ class fixed_point_scalar : public scalar {
    * @brief Get the decimal32, decimal64 or decimal128.
    *
    * @param stream CUDA stream used for device memory operations.
-   * @return The decimal32, decimal64 or decimal128 value.
+   * @return The decimal32, decimal64 or decimal128 value
    */
   T fixed_point_value(rmm::cuda_stream_view stream = rmm::cuda_stream_default) const;
 
@@ -407,13 +407,13 @@ class fixed_point_scalar : public scalar {
 
   /**
    * @brief Returns a raw pointer to the value in device memory.
-   * @return A raw pointer to the value in device memory.
+   * @return A raw pointer to the value in device memory
    */
   rep_type* data();
 
   /**
    * @brief Returns a const raw pointer to the value in device memory.
-   * @return a const raw pointer to the value in device memory.
+   * @return a const raw pointer to the value in device memory
    */
   rep_type const* data() const;
 
@@ -520,7 +520,7 @@ class string_scalar : public scalar {
    * @brief Get the value of the scalar in a host std::string.
    *
    * @param stream CUDA stream used for device memory operations.
-   * @return The value of the scalar in a host std::string.
+   * @return The value of the scalar in a host std::string
    */
   [[nodiscard]] std::string to_string(
     rmm::cuda_stream_view stream = rmm::cuda_stream_default) const;
@@ -529,19 +529,19 @@ class string_scalar : public scalar {
    * @brief Get the value of the scalar as a string_view.
    *
    * @param stream CUDA stream used for device memory operations.
-   * @return The value of the scalar as a string_view.
+   * @return The value of the scalar as a string_view
    */
   [[nodiscard]] value_type value(rmm::cuda_stream_view stream = rmm::cuda_stream_default) const;
 
   /**
    * @brief Returns the size of the string in bytes.
-   * @return The size of the string in bytes.
+   * @return The size of the string in bytes
    */
   [[nodiscard]] size_type size() const;
 
   /**
    * @brief Returns a raw pointer to the string in device memory.
-   * @return a raw pointer to the string in device memory.
+   * @return a raw pointer to the string in device memory
    */
   [[nodiscard]] const char* data() const;
 
@@ -660,7 +660,7 @@ class timestamp_scalar : public chrono_scalar<T> {
 
   /**
    * @brief Returns the duration in number of ticks since the UNIX epoch.
-   * @return The duration in number of ticks since the UNIX epoch.
+   * @return The duration in number of ticks since the UNIX epoch
    */
   rep_type ticks_since_epoch();
 };
@@ -712,7 +712,7 @@ class duration_scalar : public chrono_scalar<T> {
 
   /**
    * @brief Returns the duration in number of ticks.
-   * @return The duration in number of ticks.
+   * @return The duration in number of ticks
    */
   rep_type count();
 };
@@ -775,7 +775,7 @@ class list_scalar : public scalar {
 
   /**
    * @brief Returns a non-owning, immutable view to underlying device data.
-   * @return A non-owning, immutable view to underlying device data.
+   * @return A non-owning, immutable view to underlying device data
    */
   [[nodiscard]] column_view view() const;
 
@@ -858,7 +858,7 @@ class struct_scalar : public scalar {
 
   /**
    * @brief Returns a non-owning, immutable view to underlying device data.
-   * @return A non-owning, immutable view to underlying device data.
+   * @return A non-owning, immutable view to underlying device data
    */
   [[nodiscard]] table_view view() const;
 
diff --git a/cpp/include/cudf/scalar/scalar_device_view.cuh b/cpp/include/cudf/scalar/scalar_device_view.cuh
index 244e9237726..b298b462a4f 100644
--- a/cpp/include/cudf/scalar/scalar_device_view.cuh
+++ b/cpp/include/cudf/scalar/scalar_device_view.cuh
@@ -82,7 +82,7 @@ class fixed_width_scalar_device_view_base : public detail::scalar_device_view_ba
    * @brief Returns reference to stored value.
    *
    * @tparam T The desired type
-   * @returns Reference to stored value.
+   * @returns Reference to stored value
    */
   template <typename T>
   __device__ T& value() noexcept
@@ -94,7 +94,7 @@ class fixed_width_scalar_device_view_base : public detail::scalar_device_view_ba
    * @brief Returns const reference to stored value.
    *
    * @tparam T The desired type
-   * @returns Const reference to stored value.
+   * @returns Const reference to stored value
    */
   template <typename T>
   __device__ T const& value() const noexcept
@@ -169,14 +169,14 @@ class fixed_width_scalar_device_view : public detail::fixed_width_scalar_device_
   /**
    * @brief Returns reference to stored value.
    *
-   * @returns Reference to stored value.
+   * @returns Reference to stored value
    */
   __device__ T& value() noexcept { return fixed_width_scalar_device_view_base::value<T>(); }
 
   /**
    * @brief Returns const reference to stored value.
    *
-   * @returns Const reference to stored value.
+   * @returns Const reference to stored value
    */
   __device__ T const& value() const noexcept
   {
@@ -278,7 +278,7 @@ class fixed_point_scalar_device_view : public detail::scalar_device_view_base {
   /**
    * @brief Get the value of the scalar, as a `rep_type`.
    *
-   * @returns The value of the scalar, as a `rep_type`.
+   * @returns The value of the scalar, as a `rep_type`
    */
   __device__ rep_type const& rep() const noexcept { return *_data; }
 
@@ -311,7 +311,7 @@ class string_scalar_device_view : public detail::scalar_device_view_base {
   /**
    * @brief Returns string_view of the value of this scalar.
    *
-   * @returns string_view of the value of this scalar.
+   * @returns string_view of the value of this scalar
    */
   [[nodiscard]] __device__ ValueType value() const noexcept
   {
@@ -331,7 +331,7 @@ class string_scalar_device_view : public detail::scalar_device_view_base {
   /**
    * @brief Returns the size of the string in bytes.
    *
-   * @returns The size of the string in bytes.
+   * @returns The size of the string in bytes
    */
   [[nodiscard]] __device__ size_type size() const noexcept { return _size; }
 
diff --git a/cpp/include/cudf/scalar/scalar_factories.hpp b/cpp/include/cudf/scalar/scalar_factories.hpp
index 9b629be7139..305732d6b0b 100644
--- a/cpp/include/cudf/scalar/scalar_factories.hpp
+++ b/cpp/include/cudf/scalar/scalar_factories.hpp
@@ -54,7 +54,7 @@ std::unique_ptr<scalar> make_numeric_scalar(
  * @param type The desired timestamp element type
  * @param stream CUDA stream used for device memory operations.
  * @param mr Device memory resource used to allocate the scalar's `data` and `is_valid` bool.
- * @return An uninitialized timestamp scalar.
+ * @return An uninitialized timestamp scalar
  */
 std::unique_ptr<scalar> make_timestamp_scalar(
   data_type type,
@@ -71,7 +71,7 @@ std::unique_ptr<scalar> make_timestamp_scalar(
  * @param type The desired duration element type
  * @param stream CUDA stream used for device memory operations.
  * @param mr Device memory resource used to allocate the scalar's `data` and `is_valid` bool.
- * @return An uninitialized duration scalar.
+ * @return An uninitialized duration scalar
  */
 std::unique_ptr<scalar> make_duration_scalar(
   data_type type,
@@ -88,7 +88,7 @@ std::unique_ptr<scalar> make_duration_scalar(
  * @param type The desired fixed-width element type
  * @param stream CUDA stream used for device memory operations.
  * @param mr Device memory resource used to allocate the scalar's `data` and `is_valid` bool.
- * @return An uninitialized fixed-width scalar.
+ * @return An uninitialized fixed-width scalar
  */
 std::unique_ptr<scalar> make_fixed_width_scalar(
   data_type type,