Assignment
When an option seller is required to fulfill the contract: deliver shares on a short call, or buy shares on a short put.
Where it is explained in full
Covered calls: the whole position, not just the premium. Selling a call against stock you own puts money in your pocket today and gives something up tomorrow. Look at both halves, or the premium will look like free money when it is not.
A definition says what a thing is; it never says whether it fits you. The guides explain how it works and name the professional who confirms it for a particular person. The No Advice Disclosure.
Ask about Assignment
A model reads this page and answers from it. It will say when the answer is not on the page. Education, not personalized advice.