diff --git a/integrations/symfony-bundle.rst b/integrations/symfony-bundle.rst
index 16365fc..aa9c451 100644
--- a/integrations/symfony-bundle.rst
+++ b/integrations/symfony-bundle.rst
@@ -15,7 +15,7 @@ Installation
 Using Symfony Flex
 ------------------
 
-HttplugBundle is officialy supported by `Symfony Flex`_ and available as the ``http`` alias.
+HttplugBundle is officially supported by `Symfony Flex`_ and available as the ``http`` alias.
 
 .. code-block:: bash
 
diff --git a/integrations/symfony-full-configuration.rst b/integrations/symfony-full-configuration.rst
index 76a042b..8bcb43c 100644
--- a/integrations/symfony-full-configuration.rst
+++ b/integrations/symfony-full-configuration.rst
@@ -108,7 +108,7 @@ This page shows an example of all configuration values provided by the bundle.
                     - header_append:
                         # Keys are the header names, values the header values
                         headers:
-                            'X-FOO': bar # contrary to default symfony behaviour, hyphens "-" are NOT translated to underscores "_" for the headers.
+                            'X-FOO': bar # contrary to default symfony behavior, hyphens "-" are NOT translated to underscores "_" for the headers.
                     # Set header to default value if it does not exist.
                     - header_defaults:
                         # Keys are the header names, values the header values
diff --git a/plugins/cache.rst b/plugins/cache.rst
index ed93f9d..edb542b 100644
--- a/plugins/cache.rst
+++ b/plugins/cache.rst
@@ -107,7 +107,7 @@ which allow you to specify what HTTP header you want include in the cache key.
 Controlling cache listeners
 ```````````````````````````
 
-One or more classes implementing ``CacheListener`` can be added through ``cache_listeners``. These classes recieve a
+One or more classes implementing ``CacheListener`` can be added through ``cache_listeners``. These classes receive a
 notification on whether a request was a cache hit or miss, and can optionally mutate the response based on those signals.
 As an example, adding the provided ``AddHeaderCacheListener`` will mutate the response, adding an ``X-Cache`` header with
 a value ``HIT`` or ``MISS``, which can be useful in debugging.
diff --git a/plugins/retry.rst b/plugins/retry.rst
index 0d8b702..748972a 100644
--- a/plugins/retry.rst
+++ b/plugins/retry.rst
@@ -8,7 +8,7 @@ code in the 5xx server error range. Since version 2.0, responses with status
 codes in the 5xx range are also retried. Each retry attempt is delayed by an
 exponential backoff time.
 
-See below for how to configure that behaviour.
+See below for how to configure that behavior.
 
 .. warning::
 
@@ -32,22 +32,22 @@ Options
 
 Number of retry attempts to make before giving up.
 
-``error_response_decider``: callable (default behaviour: retry if status code is in 5xx range)
+``error_response_decider``: callable (default behavior: retry if status code is in 5xx range)
 
 A callback function that receives the request and response to decide whether the
 request should be retried.
 
-``exception_decider``: callable (default behaviour: retry if the exception is not an HttpException or status code is in 5xx range)
+``exception_decider``: callable (default behavior: retry if the exception is not an HttpException or status code is in 5xx range)
 
 A callback function that receives a request and an exception to decide after a
 failure whether the request should be retried.
 
-``error_response_delay``: callable (default behaviour: exponential backoff)
+``error_response_delay``: callable (default behavior: exponential backoff)
 
 A callback that receives a request, a response, the current number of retries
 and returns how many microseconds we should wait before trying again.
 
-``exception_delay``: callable (default behaviour: exponential backoff)
+``exception_delay``: callable (default behavior: exponential backoff)
 
 A callback that receives a request, an exception, the current number of retries 
 and returns how many microseconds we should wait before trying again.
diff --git a/spelling_word_list.txt b/spelling_word_list.txt
index 9439461..5aef073 100644
--- a/spelling_word_list.txt
+++ b/spelling_word_list.txt
@@ -1,12 +1,14 @@
 Artax
 async
 auth
+backoff
 backtrace
 boolean
 callables
 chunked
 cURL
 Diactoros
+discoverable
 Elasticsearch
 fallback
 GitHub
@@ -15,15 +17,20 @@ Liskov
 Symfony
 HTTPlug
 Ivory
+instantiation
+integrations
+interoperability
 namespace
 plugin
 plugins
 matchers
+matcher
 multipart
 param
 params
 profiler
 PHP
+phpdoc
 Puli
 rebase
 Semver
@@ -31,8 +38,10 @@ sexualized
 sublicense
 sync
 toolbar
+typehint
 username
 versa
+versionadded
 whitelist
 wiki
 Wikipedia