This is a Python application that sends daily Word of the Day SMS notifications using Twilio Programmable Messaging APIs and the Wordnik API. The application is deployed on Heroku and scheduled to run automatically every day at a specified time. It uses environment variables stored in a `.env` file to configure its settings, including Twilio account credentials and the Wordnik API key. The application fetches the current date from Python's `datetime` module and queries the Wordnik API for a new word of the day based on this date. If the Wordnik API key is available, it retrieves the word definition; otherwise, it uses a mock definition. The application then sends an SMS notification with the word and its definition to a specified phone number using Twilio's messaging APIs. The entire process is automated, making it easy to deploy and manage the service on Heroku.