diff --git a/cryptographic-hash-functions/hash-functions-applications.md b/cryptographic-hash-functions/hash-functions-applications.md
index d553ec7..f7eb737 100644
--- a/cryptographic-hash-functions/hash-functions-applications.md
+++ b/cryptographic-hash-functions/hash-functions-applications.md
@@ -20,7 +20,7 @@ The above example comes from the `/etc/shadow` file in a modern Linux system. Th
 
 ## Generate Unique ID
 
-Generate an \(**almost**\) **unique ID** of certain document / message. Cryptographic hash functions almost uniquely identify documents based on their content. In theory **collisions are possible** with any cryptographic hash function, but are very unlikely to happen, so most systems \(like **Git**\) assume that the hash function they use is **collistion free**.
+Generate an \(**almost**\) **unique ID** of certain document / message. Cryptographic hash functions almost uniquely identify documents based on their content. In theory **collisions are possible** with any cryptographic hash function, but are very unlikely to happen, so most systems \(like **Git**\) assume that the hash function they use is **collision free**.
 
 Usually a document is **hashed** and the **document ID** \(hash value\) is used later to prove the existence of the document, or to retrieve the document from a storage system. Example of hash-based unique IDs are the commit hashes in **Git** and **GitHub**, based on the content of the commit \(e.g. `3c3be25bc1757ca99aba55d4157596a8ea217698`\) and the **Bitcoin** addresses \(e.g. `1BvBMSEYstWetqTFn5Au4m4GFg7xJaNVN2`\).
 
@@ -38,5 +38,5 @@ In the above example the SHA-1 unique ID identifies a certain commit in GitHub.
 
 ## Cryptographic Hashes are Part of Modern Programming
 
-**Cryptographic hash functions** are so widely used, that they are often implemented as **build-in functions** in the standard libraries for the modern programming languages and platforms.
+**Cryptographic hash functions** are so widely used, that they are often implemented as **built-in functions** in the standard libraries for the modern programming languages and platforms.