> ## Documentation Index
> Fetch the complete documentation index at: https://docs.rime.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Check coverage

> Check whether words are in Rime's pronunciation dictionary before they reach end users.

If you’re new to Rime or have new clients with **unique** words, this is your place to make sure things are perfect out of the gate.

The [**Check Coverage**](https://app.rime.ai/coverage/) feature lets you verify whether words are in our pronunciation dictionary, giving you control over your TTS output.

***

## How it works

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  <iframe className="w-full aspect-video rounded-xl" src="https://www.youtube.com/embed/NJg5p7BRpZU" title="Check Coverage - How it Works" frameBorder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowFullScreen />
</Frame>

### 1. Upload your words

Enter a list of words in the text field.

* Copy and paste content directly

### 2. Check dictionary coverage

The system will compare each word against our pronunciation dictionary:

* **Uncovered words** – not yet in the dictionary will appear.

### 3. Listen to predicted pronunciations

For uncovered words, the system generates a predicted pronunciation:

* Often, predictions are accurate and usable immediately.
* You can listen to ensure the pronunciation meets your expectations.

### 4. Request additions to the dictionary

If a predicted pronunciation is incorrect:

* Submit a request to add the word to the official dictionary.
* The word appears in the [**Speech QA Dashboard**](https://app.rime.ai/oov/).
* Our linguists will review and add it within one week.

***

## Benefits

* Ensure correct pronunciation of brand names, technical terms, or uncommon words.
* Gain real-time visibility into dictionary coverage via the dashboard.
* Collaborate with our linguists to improve pronunciation quality.

***

## Generating a pronunciation string

For Mist-family models, you can specify a custom pronunciation directly in your TTS request by passing a phonetic string in curly brackets (see [Custom pronunciation](/docs/custom-pronunciation) for the API mechanic). The [**Pronunciation tool**](https://app.rime.ai/pronunciation) in the dashboard generates these phonetic strings for you so you don't have to write them by hand.

To generate one:

1. Type the word and record yourself speaking it.
2. Click **Generate** — Rime's pronunciation model returns a phonetic string in the [Rime phonetic alphabet](/platform/rime-phonetic-alphabet).
3. Listen to the result spoken by any Rime voice and tweak the phonetic string if needed.
4. Paste the final string into your TTS request inside `{}` and set `phonemizeBetweenBrackets: true`.

For the phonetic-alphabet symbol reference, see [Rime phonetic alphabet](/platform/rime-phonetic-alphabet).

***

## Tips

* Check words regularly when working with new or domain-specific content.
* Review predicted pronunciations carefully before submitting requests.
* Track the status of all requests in the [**Speech QA Dashboard**](https://app.rime.ai/oov/).