Index: doc/next-migration.txt
===================================================================
diff -u -r18b6516228b6bdc151f98734b6a3027bb1eff6fb -ra19966164e915b426ffe12e34170a7be9a9e77ee
--- doc/next-migration.txt	(.../next-migration.txt)	(revision 18b6516228b6bdc151f98734b6a3027bb1eff6fb)
+++ doc/next-migration.txt	(.../next-migration.txt)	(revision a19966164e915b426ffe12e34170a7be9a9e77ee)
@@ -118,7 +118,7 @@
 
 . *Orthogonal Parameterization:*
    The Next Scripting Language provides an _orthogonal framework for
-   parametrization_ of methods and objects.
+   parameterization_ of methods and objects.
    .. In NX, the same argument parser is used for
      * Scripted Methods
      * C-implemented methods and Tcl commands
@@ -1349,7 +1349,7 @@
 
 NX allows one to define _optional_ and _required_ configure parameters (as
 well as method parameters). Therefore, configure parameters can be used
-as the single mechanism to parametrize objects. It is in NX not
+as the single mechanism to parameterize objects. It is in NX not
 necessary (and per default not possible) to pass arguments to the
 constructor.
 
@@ -1479,7 +1479,7 @@
 |======================
 
 Since the slots are objects, the slot objects can be configured and
-parametrized like every other object in NX. Slot objects can be
+parameterized like every other object in NX. Slot objects can be
 provided with a scripted initialization as well. We show first the
 definition of properties similar to the functionality provided as well
 by XOTcl and show afterwards how to use value constraints, optional
@@ -2988,7 +2988,7 @@
 === Obsolete Commands
 
 Parameter-classes were rarely used and have been replaced by the more
-general object parametrization. Therefore, `cl info parameterclass` has
+general object parameterization. Therefore, `cl info parameterclass` has
 been removed.
 
 === Stronger Checking
Index: doc/next-tutorial/next-tutorial.txt
===================================================================
diff -u -r18b6516228b6bdc151f98734b6a3027bb1eff6fb -ra19966164e915b426ffe12e34170a7be9a9e77ee
--- doc/next-tutorial/next-tutorial.txt	(.../next-tutorial.txt)	(revision 18b6516228b6bdc151f98734b6a3027bb1eff6fb)
+++ doc/next-tutorial/next-tutorial.txt	(.../next-tutorial.txt)	(revision a19966164e915b426ffe12e34170a7be9a9e77ee)
@@ -2080,7 +2080,7 @@
 class +::D+. When the parameter option +substdefault+ is used
 default, all substitution kinds of Tcl are active: command, variable, and
 backslash substitution. +substdefault+ can be
-parametrized to include or to exclude any combination of substitution
+parameterized to include or to exclude any combination of substitution
 kinds by providing a bit mask:
 
 - +substdefault=0b111+: all substitutions active (default)