Breakfast is a noun, so it's a name, in this case for a meal at a certain point in the day.
Some examples:
"Time to have breakfast!"
Breakfast is the first, and most important meal of the day.
The food eaten at breakfast varies from culture to culture.
you can use the word awoken is a sentence like this: The lad had just awoken before breakfast.
Oatmeal is my favorite breakfast
This is an example of a sentence using the word breakfast.
I felled three trees before breakfast today!
The waffle beckoned me with the enticing aroma of breakfast.
She spread peanut butter on the white bread for her breakfast.
That breakfast was very filling. Or you can say Can you pass me the cupcake filling? There are many different ways to use filling in a sentence. :)
I had not eaten any breakfast, so by mid morning I began feeling peckish.
"I had a little breakfast." "My new hamster is so tiny and little!" "The little table was knocked over."
Breakfast was never a convivial meal in David's house. Breakfast is the most important meal of the day.
Example of breakfast as the direct object:I ate breakfast this morning.He cooked breakfast for the kids.They served breakfast by the pool.That was a good breakfast.
Cereal and fruit is my usual breakfast.