diff --git a/src/drc/drc/built-in-macros/_drc_complex_ops.rb b/src/drc/drc/built-in-macros/_drc_complex_ops.rb
index 30eb64908..59a9046e4 100644
--- a/src/drc/drc/built-in-macros/_drc_complex_ops.rb
+++ b/src/drc/drc/built-in-macros/_drc_complex_ops.rb
@@ -313,7 +313,7 @@ class DRCOpNode
   # first argument. This will not render the desired results.
   # Remember that the "drc" function will walk over all primary
   # shapes and present single primaries to the NOT operation together
-  # the the secondaries of that single shape. So when you use
+  # with the secondaries of that single shape. So when you use
   # secondary shapes as the first argument, they will not see all
   # all the primaries required to compute the correct result.
   # That's also why a XOR operation cannot be provided in the 
@@ -692,7 +692,7 @@ CODE
   #
   # For this measurement edges are considered without their direction and straight lines. 
   # A horizontal edge has an angle of zero degree. A vertical one has
-  # an angle of 90 degee. The angle range is from -90 (exclusive) to 90 degree (inclusive).
+  # an angle of 90 degrees. The angle range is from -90 (exclusive) to 90 degree (inclusive).
   #
   # If the input shapes are not polygons or edge pairs, they are converted to edges 
   # before the angle test is made.
@@ -706,7 +706,7 @@ CODE
   # @/code
   #
   # Note that angle checks usually imply the need to rotation variant formation as cells which
-  # are placed unrotated and rotated by 90 degree cannot be considered identical. This imposes
+  # are placed non-rotated and rotated by 90 degree cannot be considered identical. This imposes
   # a performance penalty in hierarchical mode. If possible, consider using \DRC#rectilinear for
   # example to detect shapes with non-manhattan geometry instead of using angle checks.
   #
@@ -722,7 +722,7 @@ CODE
   # @brief Applies corner rounding
   # @synopsis expression.rounded_corners(inner, outer, n)
   #
-  # This operation acts on polygons and applies corner rounding the the given inner
+  # This operation acts on polygons and applies corner rounding to the given inner
   # and outer corner radius and the number of points n per full circle. See \Layer#rounded_corners for more details.
   #
   # The "rounded_corners" method is available as a plain function or as a method on \DRC# expressions.
@@ -806,7 +806,7 @@ CODE
 
   # %DRC%
   # @name extent_refs
-  # @brief Returns partial references to the boundings boxes of the polygons
+  # @brief Returns partial references to the bounding boxes of the polygons
   # @synopsis expression.extent_refs([ options ])
   #
   # The extent_refs operation acts on polygons and has the same effect than \Layer#extent_refs.
diff --git a/src/drc/drc/built-in-macros/_drc_cop_integration.rb b/src/drc/drc/built-in-macros/_drc_cop_integration.rb
index c596e0cde..0b17df957 100644
--- a/src/drc/drc/built-in-macros/_drc_cop_integration.rb
+++ b/src/drc/drc/built-in-macros/_drc_cop_integration.rb
@@ -22,7 +22,7 @@ module DRC
     # within the DRC.
     #
     # When the DRC function is executed, it will basically visit all shapes
-    # from the input layer. This is the layer, the "drc" method is called on.
+    # from the input layer (the layer, the "drc" method is called on)).
     # While it does, it collects the neighbor shapes from all involved other inputs 
     # and runs the requested operations on each cluster. 
     # Currently, "drc" is only available for polygon layers.
@@ -34,10 +34,10 @@ module DRC
     # but involves potentially complex and heavy operations such as booleans, interact
     # etc. For this reason, the "drc" function may provide a better performance.
     #
-    # In addition, within the loop a single shape from the input layer is presented to
+    # In addition, within the loop a single shape from the input layer is presented to the
     # execution engine which runs the operations.
     # This allows using operations such as "size" without having to consider 
-    # neigbor polygons growing into the area of the initial shape. In this sense,
+    # neighbor polygons growing into the area of the initial shape. In this sense,
     # the "drc" function sees the layer as individual polygons rather than
     # a global "sea of polygons". This enables new applications which are otherwise
     # difficult to implement.
@@ -258,7 +258,7 @@ module DRC
     # ("if_all"). 
     #
     # For example, this will select all polygons which are rectangles
-    # and whose area is larger than 20 quare micrometers:
+    # and whose area is larger than 20 square micrometers:
     #
     # @code
     # out = in.drc(if_all(rectangles, area > 20.0))
@@ -795,7 +795,7 @@ CODE
     # small (2x2 DBU) box markers.
     # 
     # The "corners" operator can be put into a condition which means it's
-    # applied to coners meeting a particular angle constraint.
+    # applied to corners meeting a particular angle constraint.
 
     def _cop_corners(as_dots = DRCAsDots::new(false))
       # NOTE: this method is a fallback for the respective global ones which route to DRCLayer or here.