diff --git a/avocado/core/plugin_interfaces.py b/avocado/core/plugin_interfaces.py
index 2db136255b31f40df50fbb4bca39012a8994d9b2..c9d7c0044b1df8db6ab7c24d1138fed52867cd7a 100644
--- a/avocado/core/plugin_interfaces.py
+++ b/avocado/core/plugin_interfaces.py
@@ -141,7 +141,7 @@ class JobPreTests(Plugin):
     """
     Base plugin interface for adding actions before a job runs tests
 
-    This interface looks similar to :class:`JobPre`, but it's inteded
+    This interface looks similar to :class:`JobPre`, but it's intended
     to be called at a very specific place, that is, between
     :meth:`avocado.core.job.Job.create_test_suite` and
     :meth:`avocado.core.job.Job.run_tests`.
@@ -177,7 +177,7 @@ class JobPostTests(Plugin):
 class ResultEvents(JobPreTests, JobPostTests):
 
     """
-    Base plugin interface for event based (streameable) results
+    Base plugin interface for event based (stream-able) results
 
     Plugins that want to add actions to be run after a job runs,
     should use the 'avocado.plugins.result_events' namespace and
diff --git a/avocado/utils/build.py b/avocado/utils/build.py
index d9a856ff0b8d29465730e06375ac2ffbba62f560..4d2a648cc67baca9ecc6da57026a1a605423950c 100644
--- a/avocado/utils/build.py
+++ b/avocado/utils/build.py
@@ -63,7 +63,7 @@ def run_make(path, make='make', env=None, extra_args='', ignore_status=None,
 
     # Compatibility with 36LTS
     # process_kwargs was added in 43.0 and supersedes the old way of
-    # specifying the proces's arguments. When 36LTS is discontinued the
+    # specifying the process's arguments. When 36LTS is discontinued the
     # ignore_status, allow_output_check and env args should be removed.
     if process_kwargs is None:
         process_kwargs = {}
diff --git a/avocado/utils/process.py b/avocado/utils/process.py
index 1194d8cbefda15cd244ece15d549b4f4787629e5..84f793799229a16730be1252850154c0cc46ad43 100644
--- a/avocado/utils/process.py
+++ b/avocado/utils/process.py
@@ -311,7 +311,7 @@ class SubProcess(object):
                     did not closed the stdout/stderr). Note this might result
                     in missing output produced by those daemons after the
                     main thread finishes and also it allows those daemons
-                    to be running after the process fininshes.
+                    to be running after the process finishes.
         """
         # Now assemble the final command considering the need for sudo
         self.cmd = self._prepend_sudo(cmd, sudo, shell)
diff --git a/spell.ignore b/spell.ignore
index cad61ed81c3a896e5d498cdf57d8ef16ed77dc22..33586d3abdceac0a09d89cf3c0103fd663802406 100644
--- a/spell.ignore
+++ b/spell.ignore
@@ -410,3 +410,5 @@ jobid
 lts
 unparsed
 browsable
+rfc
+bfr