diff --git a/common/JackNetOneDriver.cpp b/common/JackNetOneDriver.cpp
index a7fc083e..90731c20 100644
--- a/common/JackNetOneDriver.cpp
+++ b/common/JackNetOneDriver.cpp
@@ -959,7 +959,7 @@ extern "C"
         jack_driver_descriptor_add_parameter(desc, &filler, "redundancy", 'R', JackDriverParamUInt, &value, NULL, "Send packets N times", NULL);
 
         value.ui = false;
-        jack_driver_descriptor_add_parameter(desc, &filler, "native-endian", 'e', JackDriverParamBool, &value, NULL, "Dont convert samples to network byte order", NULL);
+        jack_driver_descriptor_add_parameter(desc, &filler, "native-endian", 'e', JackDriverParamBool, &value, NULL, "Don't convert samples to network byte order", NULL);
 
         value.i = 0;
         jack_driver_descriptor_add_parameter(desc, &filler, "jitterval", 'J', JackDriverParamInt, &value, NULL, "Attempted jitterbuffer microseconds on master", NULL);
diff --git a/common/JackProxyDriver.h b/common/JackProxyDriver.h
index 82156555..74b8ba20 100644
--- a/common/JackProxyDriver.h
+++ b/common/JackProxyDriver.h
@@ -73,10 +73,10 @@ namespace Jack
             int* fUpstreamCapturePortConnected;      /*<! map of capture ports connected upstream, for optimization purpose */
             int* fUpstreamPlaybackPortConnected;     /*<! map of playback ports connected upstream, for optimization purpose */
 
-            bool fAutoSave;                          /*<! wether the local connections should be saved/restored when upstream connection is restarted */
-            bool fAutoConnect;                       /*<! wether the upstream ports should be automatically connected to upstream physical ports */
-            bool fDetectPlaybackChannels;            /*<! wether the number of playback ports registered should match the number of upstream physical playback ports */
-            bool fDetectCaptureChannels;             /*<! wether the number of capture ports registered should match the number of upstream physical capture ports */
+            bool fAutoSave;                          /*<! whether the local connections should be saved/restored when upstream connection is restarted */
+            bool fAutoConnect;                       /*<! whether the upstream ports should be automatically connected to upstream physical ports */
+            bool fDetectPlaybackChannels;            /*<! whether the number of playback ports registered should match the number of upstream physical playback ports */
+            bool fDetectCaptureChannels;             /*<! whether the number of capture ports registered should match the number of upstream physical capture ports */
 
             bool Initialize();                       /*<! establish upstream connection and register the client callbacks */
 
diff --git a/dbus/sigsegv.c b/dbus/sigsegv.c
index ead08e7d..c5321f1d 100644
--- a/dbus/sigsegv.c
+++ b/dbus/sigsegv.c
@@ -94,7 +94,7 @@ static void signal_segv(int signum, siginfo_t* info, void*ptr) {
     }
     else
     {
-        jack_error("Unknown bad signal catched!");
+        jack_error("Unknown bad signal caught!");
     }
 
     if (info->si_code >= 0 && info->si_code < 3) 
diff --git a/example-clients/wait.c b/example-clients/wait.c
index 667343aa..2d5ff1c6 100644
--- a/example-clients/wait.c
+++ b/example-clients/wait.c
@@ -19,7 +19,7 @@ show_usage(void)
 	fprintf(stderr, "        -s, --server <name>   Connect to the jack server named <name>\n");
 	fprintf(stderr, "        -w, --wait            Wait for server to become available\n");
 	fprintf(stderr, "        -q, --quit            Wait until server is quit\n");
-	fprintf(stderr, "        -c, --check           Check wether server is running\n");
+	fprintf(stderr, "        -c, --check           Check whether server is running\n");
 	fprintf(stderr, "        -t, --timeout         Wait timeout in seconds\n");
 	fprintf(stderr, "        -h, --help            Display this help message\n");
 	fprintf(stderr, "For more information see http://jackaudio.org/\n");
diff --git a/linux/alsa/JackAlsaAdapter.h b/linux/alsa/JackAlsaAdapter.h
index 67733718..c5dc3104 100644
--- a/linux/alsa/JackAlsaAdapter.h
+++ b/linux/alsa/JackAlsaAdapter.h
@@ -421,7 +421,7 @@ namespace Jack
                         }
                         break;
                     default :
-                        check_error_msg ( -10000, "unknow access mode" );
+                        check_error_msg ( -10000, "unknown access mode" );
                         break;
                 }
                 return 0;
@@ -507,7 +507,7 @@ namespace Jack
                         }
                         break;
                     default :
-                        check_error_msg ( -10000, "unknow access mode" );
+                        check_error_msg ( -10000, "unknown access mode" );
                         break;
                 }
                 return 0;