diff --git a/glossary.asciidoc b/glossary.asciidoc
index a8ff38de..95ef091b 100644
--- a/glossary.asciidoc
+++ b/glossary.asciidoc
@@ -214,13 +214,13 @@ secret key (aka private key)::
 ----
 
 Segregated Witness::
-    Segregated Witness is an upgrade to the Bitcoin protocol in which technological innovation separated signature data from bitcoin transactions. Segregated Witness was implemented as a soft fork; a change that technically makes Bitcoin’s protocol rules more restrictive.
+    Segregated Witness is an upgrade to the Bitcoin protocol in which signature ("witness") data is separated from sender/receiver data to further optimize the structure of transactions. Segregated Witness was implemented as a soft fork; a change that technically makes Bitcoin’s protocol rules more restrictive.
 
 SHA::
     The Secure Hash Algorithm or SHA is a family of cryptographic hash functions published by the National Institute of Standards and Technology (NIST).
 
 Simplified Payment Verification (SPV)::
-    SPV or simplified payment verification is a method for verifying that particular transactions were included in a block, without downloading the entire block. The method is used by some lightweight Bitcoin clients.
+    SPV or simplified payment verification is a method for verifying that particular transactions were included in a block, without downloading the entire block. This method of verification is often used by lightweight Bitcoin clients.
 
 soft fork::
     soft fork or Soft-Forking Change is a temporary fork in the blockchain which commonly occurs when miners using non-upgraded nodes don't follow a new consensus rule their nodes don’t know about.