Here are a few description options for a WordPress post tag titled “語彙 (Vocabulary)” in Traditional Chinese, catering to different levels of formality and focus:

**Option 1: Concise and General:**

> 涵蓋多個範疇的詞彙，包括詞語、短語、成語等。 (Covers vocabulary from various areas, including words, phrases, idioms, etc.)

* **Good for:** A general-purpose tag.

**Option 2: Emphasis on Learning:**

> 專為學習中文而設的詞彙。了解常用詞語，豐富你的語言技巧！ (Vocabulary specifically for learning Chinese. Discover common words and enrich your language skills!)

* **Good for:** A site focusing on language learning. Encourages engagement.

**Option 3: More Descriptive:**

> 本標籤收錄與中文詞彙相關的文章，涵蓋詞語定義、用法、例句，以及詞語在不同情境下的應用。 (This tag contains articles related to Chinese vocabulary, including word definitions, usage, examples, and applications of words in different contexts.)

* **Good for:** Indicates the range of content within the tag. Good for a more content-rich blog.

**Option 4: Focus on Traditional Chinese:**

> 繁體中文詞彙集。掌握正體字詞彙，提升你的中文讀寫能力。 (Traditional Chinese vocabulary collection. Master the vocabulary using traditional characters and improve your Chinese reading and writing skills.)

* **Good for:** Specifically emphasizes that the vocabulary is in Traditional Chinese characters. Makes it clear for users looking for resources in this form.

**Option 5: Short and Simple:**

> 繁體中文詞彙。 (Traditional Chinese Vocabulary.)

* **Good for:** A quick and easy description that is understood by a Chinese Speaker.

**Key Considerations when Choosing:**

* **Target Audience:** Who will be reading your blog/website? Adjust the language level accordingly.
* **Content Focus:** What do the posts tagged with “語彙” actually cover? Make the description accurately reflect the content.
* **Website Style:** Match the tone and style of your other content.

Remember to choose ONE appropriate to your blog and content! You can also adjust these descriptions to be more specific to your website.