diff --git a/readme.mdown b/readme.mdown
index baad9db..1e7a0dd 100644
--- a/readme.mdown
+++ b/readme.mdown
@@ -8,7 +8,7 @@ Much like users picking an instance to join because of a theme or the moderation
 The governance of federation is a bit outside of the scope of AP.
 A fork of AP isn't necessary as a system of trust notaries could overlay any federating protocol.
 
-For brevity, an instance is referred to as a (node) below.
+An ActivityPub instance in a federated network is referred to as a (node) below.
 
 # decentralized authority