diff --git a/docs/glossary.md b/docs/glossary.md
index 6ab89fd4b..7b8aa2cc1 100644
--- a/docs/glossary.md
+++ b/docs/glossary.md
@@ -8,3 +8,6 @@ Naming things is hard. This page tries to reduce confusion around naming.
 * **Target Function**
 * **Fuzzing Target Function** a function to which we apply fuzzing at the hopes to find a bug.
 A [specific signature](libfuzzer.info#fuzz-target) must be used for OSS-Fuzz.
+
+
+* **Fuzzing Engine** a program that tries to find interesting inputs