Start with the dictionary environment

Use datatool to create database of entries and print them sorted.

dictionary.sty

@@ -0,0 +1,21 @@
+\NeedsTeXFormat{LaTeX2e}
+\ProvidesPackage{dictionary}[2024/11/24 Dictionary]
+
+\RequirePackage{babel}
+\RequirePackage{datatool}
+
+\newcommand{\entry}[2]{%
+  \DTLnewrow{dictionary}%
+  \DTLnewdbentry{dictionary}{word}{#1}%
+  \DTLnewdbentry{dictionary}{translation}{#2}%
+}
+
+\newenvironment{dictionary}{%
+  \DTLifdbexists{dictionary}{\DTLcleardb{dictionary}}{\DTLnewdb{dictionary}}%
+}{%
+  \DTLsort{word}{dictionary}%
+  \scriptsize%
+  \DTLforeach*{dictionary}{\word=word,\translation=translation}{%
+    \selectlanguage{vietnamese}\textbf{\word:} \selectlanguage{naustrian}\translation\\}%
+  \selectlanguage{vietnamese}%
+}