diff --git a/src/System.Management.Automation/engine/hostifaces/History.cs b/src/System.Management.Automation/engine/hostifaces/History.cs
index 8d99e9ec42..3f517b0971 100644
--- a/src/System.Management.Automation/engine/hostifaces/History.cs
+++ b/src/System.Management.Automation/engine/hostifaces/History.cs
@@ -1742,7 +1742,7 @@ namespace Microsoft.PowerShell.Commands
             }
             set
             {
-                _countParamterSpecified = true;
+                _countParameterSpecified = true;
                 _count = value;
             }
         }
@@ -1755,7 +1755,7 @@ namespace Microsoft.PowerShell.Commands
         /// <summary>
         /// a boolean variable to indicate if the count parameter specified
         /// </summary>
-        private bool _countParamterSpecified = false;
+        private bool _countParameterSpecified = false;
 
         /// <summary>
         /// Specifies whether new entries to be cleared or the default old ones.
@@ -1824,7 +1824,7 @@ namespace Microsoft.PowerShell.Commands
         /// </summary>
         private void ClearHistoryByID()
         {
-            if (_countParamterSpecified && Count < 0)
+            if (_countParameterSpecified && Count < 0)
             {
                 Exception ex =
                    new ArgumentException
@@ -1846,7 +1846,7 @@ namespace Microsoft.PowerShell.Commands
             if (_id != null)
             {
                 // if count parameter is not present
-                if (!_countParamterSpecified)
+                if (!_countParameterSpecified)
                 {
                     // clearing the entry for each id in the id[] parameter.      
                     foreach (long id in _id)
@@ -1908,7 +1908,7 @@ namespace Microsoft.PowerShell.Commands
             else
             {
                 // confirmation message if all the clearhistory cmdlet is used without any parameters
-                if (_countParamterSpecified == false)
+                if (_countParameterSpecified == false)
                 {
                     string message = StringUtil.Format(HistoryStrings.ClearHistoryWarning, "Warning");// "The command would clear all the entry(s) from the session history,Are you sure you want to continue ?";
                     if (!ShouldProcess(message))
@@ -1933,7 +1933,7 @@ namespace Microsoft.PowerShell.Commands
         private void ClearHistoryByCmdLine()
         {
             // throw an exception for invalid count values
-            if (_countParamterSpecified && Count < 0)
+            if (_countParameterSpecified && Count < 0)
             {
                 Exception ex =
                    new ArgumentException
@@ -1956,7 +1956,7 @@ namespace Microsoft.PowerShell.Commands
             if (_commandline != null)
             {
                 // if count parameter is not present
-                if (!_countParamterSpecified)
+                if (!_countParameterSpecified)
                 {
                     foreach (string cmd in _commandline)
                     {
@@ -2038,7 +2038,7 @@ namespace Microsoft.PowerShell.Commands
                 //creates a wild card pattern
                 WildcardPattern wildcardpattern = WildcardPattern.Get(cmdline, WildcardOptions.IgnoreCase);
                 //count set to zero if not specified.
-                if (!_countParamterSpecified && WildcardPattern.ContainsWildcardCharacters(cmdline))
+                if (!_countParameterSpecified && WildcardPattern.ContainsWildcardCharacters(cmdline))
                 {
                     count = 0;
                 }
diff --git a/src/System.Management.Automation/engine/hostifaces/LocalConnection.cs b/src/System.Management.Automation/engine/hostifaces/LocalConnection.cs
index 32cc938deb..e942eb4624 100644
--- a/src/System.Management.Automation/engine/hostifaces/LocalConnection.cs
+++ b/src/System.Management.Automation/engine/hostifaces/LocalConnection.cs
@@ -459,16 +459,16 @@ namespace System.Management.Automation.Runspaces
                                 // appdomins for which the debug preference has to be enabled.
                                 if (processDebugPreference != null)
                                 {
-                                    List<string> chachedAppDomainNames = null;
+                                    List<string> cachedAppDomainNames = null;
                                     if (processDebugPreference.AppDomainNames != null && processDebugPreference.AppDomainNames.Length > 0)
                                     {
-                                        chachedAppDomainNames = new List<string>(processDebugPreference.AppDomainNames);
+                                        cachedAppDomainNames = new List<string>(processDebugPreference.AppDomainNames);
 
                                         foreach (string currentAppDomainName in appDomainName)
                                         {
-                                            if (!chachedAppDomainNames.Contains(currentAppDomainName, StringComparer.OrdinalIgnoreCase))
+                                            if (!cachedAppDomainNames.Contains(currentAppDomainName, StringComparer.OrdinalIgnoreCase))
                                             {
-                                                chachedAppDomainNames.Add(currentAppDomainName);
+                                                cachedAppDomainNames.Add(currentAppDomainName);
                                                 iscacheUpdated = true;
                                             }
                                         }
@@ -476,7 +476,7 @@ namespace System.Management.Automation.Runspaces
 
                                     if (iscacheUpdated)
                                     {
-                                        DebugPreference DebugPreference = CreateDebugPreference(chachedAppDomainNames.ToArray());
+                                        DebugPreference DebugPreference = CreateDebugPreference(cachedAppDomainNames.ToArray());
                                         debugPreferenceCache[processName] = DebugPreference;
                                     }
                                 }
@@ -501,17 +501,17 @@ namespace System.Management.Automation.Runspaces
                                     // appdomins for which the debug preference has to be enabled.
                                     if (processDebugPreference != null)
                                     {
-                                        List<string> chachedAppDomainNames = null;
+                                        List<string> cachedAppDomainNames = null;
                                         if (processDebugPreference.AppDomainNames != null && processDebugPreference.AppDomainNames.Length > 0)
                                         {
-                                            chachedAppDomainNames = new List<string>(processDebugPreference.AppDomainNames);
+                                            cachedAppDomainNames = new List<string>(processDebugPreference.AppDomainNames);
 
                                             foreach (string currentAppDomainName in appDomainName)
                                             {
-                                                if (chachedAppDomainNames.Contains(currentAppDomainName, StringComparer.OrdinalIgnoreCase))
+                                                if (cachedAppDomainNames.Contains(currentAppDomainName, StringComparer.OrdinalIgnoreCase))
                                                 {
                                                     // remove requested appdomains debug preference details. 
-                                                    chachedAppDomainNames.Remove(currentAppDomainName);
+                                                    cachedAppDomainNames.Remove(currentAppDomainName);
                                                     iscacheUpdated = true;
                                                 }
                                             }
@@ -519,7 +519,7 @@ namespace System.Management.Automation.Runspaces
 
                                         if (iscacheUpdated)
                                         {
-                                            DebugPreference DebugPreference = CreateDebugPreference(chachedAppDomainNames.ToArray());
+                                            DebugPreference DebugPreference = CreateDebugPreference(cachedAppDomainNames.ToArray());
                                             debugPreferenceCache[processName] = DebugPreference;
                                         }
                                     }
diff --git a/src/System.Management.Automation/engine/hostifaces/RunspacePoolInternal.cs b/src/System.Management.Automation/engine/hostifaces/RunspacePoolInternal.cs
index f75104f2c3..c332583fe8 100644
--- a/src/System.Management.Automation/engine/hostifaces/RunspacePoolInternal.cs
+++ b/src/System.Management.Automation/engine/hostifaces/RunspacePoolInternal.cs
@@ -475,8 +475,8 @@ namespace System.Management.Automation.Runspaces.Internal
                     // of the pool.
                     while (pool.Count > maxRunspaces)
                     {
-                        Runspace rsToDestory = pool.Pop();
-                        DestroyRunspace(rsToDestory);
+                        Runspace rsToDestroy = pool.Pop();
+                        DestroyRunspace(rsToDestroy);
                     }
                 }