diff --git a/CHANGELOG.md b/CHANGELOG.md
index b519d4836d6..103abea7a31 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -40,7 +40,7 @@ when updating from `rand 0.7.0` without also updating `rand_core`.
 - Fix or squelch issues from Clippy lints (#840)
 
 ### Additions
-- Add a `no_std` target to CI to continously evaluate `no_std` status (#844)
+- Add a `no_std` target to CI to continuously evaluate `no_std` status (#844)
 - `WeightedIndex`: allow adjusting a sub-set of weights (#866)
 
 ## [0.7.0] - 2019-06-28
@@ -400,7 +400,7 @@ when updating from `rand 0.7.0` without also updating `rand_core`.
 
 ## [0.3.14] - 2016-02-13
 ### Fixed
-- Inline definitions from winapi/advapi32, wich decreases build times
+- Inline definitions from winapi/advapi32, which decreases build times
 
 
 ## [0.3.13] - 2016-01-09
diff --git a/SECURITY.md b/SECURITY.md
index daedb78f0d3..3afd0034921 100644
--- a/SECURITY.md
+++ b/SECURITY.md
@@ -32,7 +32,7 @@ we provide limited mitigations against side-channel attacks:
 
 Additionally, derivations from such an RNG (including the `Rng` trait,
 implementations of the `Distribution` trait, and `seq` algorithms) should not
-introduce signficant bias other than that expected from the operation in
+introduce significant bias other than that expected from the operation in
 question (e.g. bias from a weighted distribution).
 
 ## Supported Versions
diff --git a/rand_core/src/os.rs b/rand_core/src/os.rs
index e9c2c0fbc50..dd52f4c7a58 100644
--- a/rand_core/src/os.rs
+++ b/rand_core/src/os.rs
@@ -11,7 +11,7 @@
 use crate::{impls, CryptoRng, Error, RngCore};
 use getrandom::getrandom;
 
-/// A random number generator that retrieves randomness from from the
+/// A random number generator that retrieves randomness from the
 /// operating system.
 ///
 /// This is a zero-sized struct. It can be freely constructed with `OsRng`.
diff --git a/src/distributions/mod.rs b/src/distributions/mod.rs
index 4e1b1a6e3a0..e7865c27b90 100644
--- a/src/distributions/mod.rs
+++ b/src/distributions/mod.rs
@@ -15,7 +15,7 @@
 //! of course [`Rng::sample`].
 //!
 //! Abstractly, a [probability distribution] describes the probability of
-//! occurance of each value in its sample space.
+//! occurrence of each value in its sample space.
 //!
 //! More concretely, an implementation of `Distribution<T>` for type `X` is an
 //! algorithm for choosing values from the sample space (a subset of `T`)
diff --git a/src/lib.rs b/src/lib.rs
index d42a79fb124..f2ddcc2ffec 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -37,7 +37,7 @@
 //!
 //! # The Book
 //!
-//! For the user guide and futher documentation, please read
+//! For the user guide and further documentation, please read
 //! [The Rust Rand Book](https://rust-random.github.io/book).
 
 #![doc(