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+Glossary
+========
+
+This glossary provides definitions for terms and abbreviations used in the Trusted Services documentation.
+
+You can find additional definitions in the `Arm Glossary`_.
+
+.. glossary::
+    :sorted:
+
+    TF-A
+        Trusted Firmware-A
+
+    TS
+        Trusted Services
+
+    C identifier like string
+        A name which uses only alphanumeric characters and underscores and the first character is not a digit.
+
+    LCS
+        `Linux Coding Style`_
+
+    ACLE
+        `Arm C language extensions`_
+
+
+--------------
+
+.. _`Arm Glossary`: https://developer.arm.com/support/arm-glossary
+.. _`Linux Coding Style`: https://www.kernel.org/doc/html/v4.10/process/coding-style.html
+.. _`Arm C language extensions`: https://developer.arm.com/documentation/101028/0012/?lang=en
+
+*Copyright (c) 2020-2021, Arm Limited and Contributors. All rights reserved.*
+
+SPDX-License-Identifier: BSD-3-Clause