diff --git a/.gitversion b/.gitversion
index 7ad11de..5df39e6 100644
--- a/.gitversion
+++ b/.gitversion
@@ -6,7 +6,7 @@
 version = 1.0.1
 
 # A version is determined to be a "beta" prerelease if it originates from the default branch
-# The default branch is the first branch that matches the following regular expession.
+# The default branch is the first branch that matches the following regular expression.
 # Uncomment to change the default.
 beta branch = main
 
diff --git a/LogicAnalyzer.py b/LogicAnalyzer.py
index 2b75cc8..5768445 100644
--- a/LogicAnalyzer.py
+++ b/LogicAnalyzer.py
@@ -20,7 +20,7 @@ class DigitalPin(Enum):
 @attribute(Display("Logic Analyzer", "Logic Analyzer Instrument", "PSLab"))
 class LogicAnalyzer(Instrument):
     def __init__(self):
-        "Set up the properties, methods and default values of the instrument."
+        """Set up the properties, methods and default values of the instrument."""
         super(LogicAnalyzer, self).__init__()  # The base class initializer must be invoked.
 
         self.instrument = None
diff --git a/MeasureVoltageStep.py b/MeasureVoltageStep.py
index 8d012c2..ba7d141 100644
--- a/MeasureVoltageStep.py
+++ b/MeasureVoltageStep.py
@@ -8,7 +8,7 @@
 
 
 @attribute(
-    Display("Measure Voltage", "Measures voltage between pin an GND (in V)", Groups=["PSLab", "Multimeter"]))
+    Display("Measure Voltage", "Measures voltage between pin and GND (in V)", Groups=["PSLab", "Multimeter"]))
 class MeasureVoltageStep(TestStep):
     # Properties
     Channel = property(String, "VOL") \
diff --git a/WaveformGenerator.py b/WaveformGenerator.py
index e67ab1e..ba78ba6 100644
--- a/WaveformGenerator.py
+++ b/WaveformGenerator.py
@@ -24,13 +24,13 @@ def __init__(self):
         self.Name = "Waveform Generator"
 
     def Open(self):
-        """Called by TAP when the test plans starts."""
+        """Called by TAP when the test plan starts."""
         super(WaveformGenerator, self).Open()
         self.sine = ConnectionHandler.instance().getWaveformGenerator()
         self.square = ConnectionHandler.instance().getPWMGenerator()
 
     def Close(self):
-        """Called by TAP when the test plans ends."""
+        """Called by TAP when the test plan ends."""
         super(WaveformGenerator, self).Close()
 
     def generate_sine(self, channel: SineWavePin, frequency, phase=0):