From e2a1afa1c2f39969b025efe684f4ac7c0070b807 Mon Sep 17 00:00:00 2001
From: Tshepang Lekhonkhobe <tshepang@gmail.com>
Date: Tue, 9 Jun 2015 02:32:29 +0200
Subject: [PATCH] book: define trait

---
 src/doc/trpl/traits.md | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/doc/trpl/traits.md b/src/doc/trpl/traits.md
index 2ef9e7ca22e6..6d31b230749a 100644
--- a/src/doc/trpl/traits.md
+++ b/src/doc/trpl/traits.md
@@ -1,5 +1,8 @@
 % Traits
 
+A trait is a language feature that tells the Rust compiler about
+functionality a type must provide.
+
 Do you remember the `impl` keyword, used to call a function with [method
 syntax][methodsyntax]?