Meanings
How to pronounce "bread and butter":
AU
That which is central or fundamental, as to one's business, survival, or income; a staple or cornerstone.
Example: "They will do some machining if you ask them, but sheet metal has always been their bread and butter."
Used other than figuratively or idiomatically: see bread, butter.
Said when two people walking together are temporarily separated by an obstacle in order to indicate that they belong together.
Example Sentences
1
Baking is my bread and butter; it's how I make a living.
2
Working in customer service is his bread and butter; he enjoys helping people.
3
For many professional athletes, endorsements are their bread and butter.
4
She is a graphic designer, but photography is her bread and butter.
5
Writing novels is his bread and butter; he has published several bestsellers.