diff --git a/lib_vector_search/include/word_list.h b/lib_vector_search/include/word_list.h
index b2365e2..b5a9300 100644
--- a/lib_vector_search/include/word_list.h
+++ b/lib_vector_search/include/word_list.h
@@ -11,6 +11,7 @@ public:
   WordList &multiply(size_t factor);
   WordList &shuffle();
 
+  static WordList oneCap();
   static WordList fourCaps();
   static WordList fromFile(const std::filesystem::path &path);
 
diff --git a/lib_vector_search/src/word_list.cpp b/lib_vector_search/src/word_list.cpp
index e810451..6934beb 100644
--- a/lib_vector_search/src/word_list.cpp
+++ b/lib_vector_search/src/word_list.cpp
@@ -25,6 +25,19 @@ WordList &WordList::shuffle() {
   return *this;
 }
 
+WordList WordList::oneCap() {
+  const static std::string charset_ = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
+
+  WordList word_list;
+  word_list.reserve(charset_.length());
+
+  for (auto char_1 : charset_) {
+    word_list.emplace_back(std::initializer_list<char>({char_1}));
+  }
+
+  return word_list;
+};
+
 WordList WordList::fourCaps() {
   const static std::string charset_ = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";