diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2ccd811f..697aba0c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -185,7 +185,7 @@ Any violations of this scheme are considered to be bugs.
 
 ### Fixed
 
-* [#409](https://github.com/hashie/hashie/pull/409): Fixed Railtie detection for projects where Rails is defined but Railties are not availble - [@CallumD](https://github.com/callumd).
+* [#409](https://github.com/hashie/hashie/pull/409): Fixed Railtie detection for projects where Rails is defined but Railties are not available - [@CallumD](https://github.com/callumd).
 * [#411](https://github.com/hashie/hashie/pull/411): Fixed a performance regression from 3.4.3 that caused a 10x slowdown in OmniAuth - [@michaelherold](https://github.com/michaelherold).
 
 ## [3.5.3] - 2017-02-11
@@ -464,7 +464,7 @@ Any violations of this scheme are considered to be bugs.
 
 ### Fixed
 
-* [#131](https://github.com/hashie/hashie/pull/131): Added IgnoreUndeclared, an extension to silently ignore undeclared properties at intialization - [@righi](https://github.com/righi).
+* [#131](https://github.com/hashie/hashie/pull/131): Added IgnoreUndeclared, an extension to silently ignore undeclared properties at initialization - [@righi](https://github.com/righi).
 * [#138](https://github.com/hashie/hashie/pull/138): Added Hashie::Rash, a hash whose keys can be regular expressions or ranges - [@epitron](https://github.com/epitron).
 * [#144](https://github.com/hashie/hashie/issues/144): Fixed regression invoking `to_hash` with no parameters - [@mbleigh](https://github.com/mbleigh).
 
diff --git a/README.md b/README.md
index 7eb039bb..e1b6a0a5 100644
--- a/README.md
+++ b/README.md
@@ -626,7 +626,7 @@ my_gem.dependencies.class #=> MyGem
 
 _How does Mash handle key types which cannot be symbolized?_
 
-Mash preserves keys which cannot be converted *directly* to both a string and a symbol, such as numeric keys. Since Mash is conceived to provide psuedo-object functionality, handling keys which cannot represent a method call falls outside its scope of value.
+Mash preserves keys which cannot be converted *directly* to both a string and a symbol, such as numeric keys. Since Mash is conceived to provide pseudo-object functionality, handling keys which cannot represent a method call falls outside its scope of value.
 
 ```ruby
 Hashie::Mash.new('1' => 'one string', :'1' => 'one sym', 1 => 'one num')
@@ -1106,7 +1106,7 @@ mapper["Get off my lawn!"]      # => "Forget your lawn, old man!"
 If this value is too low or too high for your needs, you can tune it by setting: `rash.optimize_every = n`.
 
 ## Mascot
-[![eierlegende Wollmilchsau](./mascot.svg)](https://en.wiktionary.org/wiki/eierlegende_Wollmilchsau) Meet Hashie's "offical" mascot, the [eierlegende Wollmilchsau](https://en.wiktionary.org/wiki/eierlegende_Wollmilchsau)!
+[![eierlegende Wollmilchsau](./mascot.svg)](https://en.wiktionary.org/wiki/eierlegende_Wollmilchsau) Meet Hashie's "official" mascot, the [eierlegende Wollmilchsau](https://en.wiktionary.org/wiki/eierlegende_Wollmilchsau)!
 
 ## Contributing
 
diff --git a/lib/hashie/dash.rb b/lib/hashie/dash.rb
index cfb151ef..be937c11 100644
--- a/lib/hashie/dash.rb
+++ b/lib/hashie/dash.rb
@@ -10,7 +10,7 @@ module Hashie
   # lightweight data object that needs even fewer options and
   # resources than something like a DataMapper resource.
   #
-  # It is preferrable to a Struct because of the in-class
+  # It is preferable to a Struct because of the in-class
   # API for defining properties as well as per-property defaults.
   class Dash < Hash
     include Hashie::Extensions::PrettyInspect
diff --git a/lib/hashie/extensions/deep_locate.rb b/lib/hashie/extensions/deep_locate.rb
index 2b33b23f..a18b67ea 100644
--- a/lib/hashie/extensions/deep_locate.rb
+++ b/lib/hashie/extensions/deep_locate.rb
@@ -1,7 +1,7 @@
 module Hashie
   module Extensions
     module DeepLocate
-      # The module level implementation of #deep_locate, incase you do not want
+      # The module level implementation of #deep_locate, in case you do not want
       # to include/extend the base datastructure. For further examples please
       # see #deep_locate.
       #
diff --git a/lib/hashie/extensions/method_access.rb b/lib/hashie/extensions/method_access.rb
index 6543fee0..17e62494 100644
--- a/lib/hashie/extensions/method_access.rb
+++ b/lib/hashie/extensions/method_access.rb
@@ -241,7 +241,7 @@ def self.included(base)
     end
 
     # MethodOverridingInitializer allows you to override default hash
-    # methods when passing in values from an existing hash. The overriden
+    # methods when passing in values from an existing hash. The overridden
     # methods are aliased with two leading underscores.
     #
     # @example
diff --git a/lib/hashie/mash.rb b/lib/hashie/mash.rb
index 21bcadb8..13df879d 100644
--- a/lib/hashie/mash.rb
+++ b/lib/hashie/mash.rb
@@ -21,7 +21,7 @@ module Hashie
   # * Bang (<tt>!</tt>): Forces the existence of this key, used for deep Mashes. Think of it
   #   as "touch" for mashes.
   # * Under Bang (<tt>_</tt>): Like Bang, but returns a new Mash rather than creating a key.
-  #   Used to test existance in deep Mashes.
+  #   Used to test existence in deep Mashes.
   #
   # == Basic Example
   #
diff --git a/spec/hashie/dash_spec.rb b/spec/hashie/dash_spec.rb
index e75ad1a5..b3f59daa 100644
--- a/spec/hashie/dash_spec.rb
+++ b/spec/hashie/dash_spec.rb
@@ -180,7 +180,7 @@ class DashMessageOptionWithoutRequiredTest < Hashie::Dash
       expect(DeferredTest.new[:created_at]).to be_instance_of(Time)
     end
 
-    it 'does not evalute proc after subsequent reads' do
+    it 'does not evaluate proc after subsequent reads' do
       deferred = DeferredTest.new
       expect(deferred[:created_at].object_id).to eq deferred[:created_at].object_id
     end
diff --git a/spec/hashie/extensions/ignore_undeclared_spec.rb b/spec/hashie/extensions/ignore_undeclared_spec.rb
index 6f2d818f..744972ec 100644
--- a/spec/hashie/extensions/ignore_undeclared_spec.rb
+++ b/spec/hashie/extensions/ignore_undeclared_spec.rb
@@ -5,18 +5,18 @@
     class ForgivingTrash < Hashie::Trash
       include Hashie::Extensions::IgnoreUndeclared
       property :city
-      property :state, from: :provence
+      property :state, from: :province
       property :str_state, from: 'str_provence'
     end
 
     subject { ForgivingTrash }
 
     it 'silently ignores undeclared properties on initialization' do
-      expect { subject.new(city: 'Toronto', provence: 'ON', country: 'Canada') }.to_not raise_error
+      expect { subject.new(city: 'Toronto', province: 'ON', country: 'Canada') }.to_not raise_error
     end
 
     it 'works with translated properties (with symbol keys)' do
-      expect(subject.new(provence: 'Ontario').state).to eq('Ontario')
+      expect(subject.new(province: 'Ontario').state).to eq('Ontario')
     end
 
     it 'works with translated properties (with string keys)' do
diff --git a/spec/hashie/extensions/mash/define_accessors_spec.rb b/spec/hashie/extensions/mash/define_accessors_spec.rb
index de7abe7a..55cd9709 100644
--- a/spec/hashie/extensions/mash/define_accessors_spec.rb
+++ b/spec/hashie/extensions/mash/define_accessors_spec.rb
@@ -55,7 +55,7 @@
     describe 'this subclass' do
       it_behaves_like 'class with dynamically defined accessors'
 
-      describe 'when accessors are overrided in class' do
+      describe 'when accessors are overridden in class' do
         before do
           subject.class_eval do
             def foo
diff --git a/spec/hashie/mash_spec.rb b/spec/hashie/mash_spec.rb
index 091748fc..3969a7fd 100644
--- a/spec/hashie/mash_spec.rb
+++ b/spec/hashie/mash_spec.rb
@@ -764,12 +764,12 @@ class SubMash < Hashie::Mash
         expect(subject.production.foo).to eq config['production']['foo']
       end
 
-      it 'freeze the attribtues' do
+      it 'freeze the attributes' do
         expect { subject.production = {} }.to raise_exception(RuntimeError, /can't modify frozen/)
       end
     end
 
-    context 'if the fils does not exists' do
+    context 'if the files does not exists' do
       before do
         expect(File).to receive(:file?).with(path).and_return(false)
       end
diff --git a/spec/integration/rails_7/integration_spec.rb b/spec/integration/rails_7/integration_spec.rb
index 0e698801..920b8239 100644
--- a/spec/integration/rails_7/integration_spec.rb
+++ b/spec/integration/rails_7/integration_spec.rb
@@ -43,14 +43,14 @@ class HashieKlass < Hashie::Mash; end
   context '#deep_transform_keys' do
     let(:klass) do
       Class.new(Hashie::Dash) do
-        property :foo_bar 
+        property :foo_bar
         property :foo_baz, required: true
       end
     end
-    
+
     subject(:hash) { klass.new(foo_bar: 'bar', foo_baz: 'baz') }
 
-    it 'sucessfully deep transforms keys' do
+    it 'successfully deep transforms keys' do
       pending('https://github.com/hashie/hashie/issues/559')
       transformed = hash.deep_transform_keys(&:to_s)
       expect(transformed.keys).to all(be_a(String))