A flat fee, also referred to as a flat rate or a linear rate, refers to a pricing structure that charges a single fixed fee for a service, regardless of usage. Rarely, it may refer to a rate that does not vary with usage or time of use. Another term used is "flate", a hybrid of "flat" and "rate".
A good technique could be to memorize certain words in the definition that are a direct link to the word itself. For instance, broken means (having been fractured or damaged and no longer in one piece or working order) The words broken, fractured, and damaged are all synonyms of one another. The all mean basically the same thing.
Choices? it will help us understand
The county fair was amazing and it had horses, stations, and more! It was so exciting to see the action- pacted fair