Answer:
The application should have a form user interface to submit input, the input is used to query a database, if the input matches a row in the database, the value is displayed in the application.
Step-by-step explanation:
The data structure in the database for the dictionary application should be a dictionary, with the input from the user as the key and the returned data as the value of the dictionary.
The dictionary application should have a user interface form that submits a query to the database and dictionary data structure returns its value to the application to the user screen.