A more thorough explanation:

Definition: Sine (sI-nee or sin-ay) is a Latin word that means "without".

Example: The word "sinecure" means a job or position that requires little or no work.

Explanation: The word "sinecure" is made up of two parts: "sine" and "cure". "Sine" means "without" and "cure" means "care" or "worry". So, a "sinecure" is a job or position that requires little or no care or worry.