Although the construction appears to be more common in magazine and newspaper writing than in formal prose, beginning a sentence with because is both acceptable and widespread. Because is more common than as and since, both in writing and speaking. When we use because, we are focusing on the reason:.
Because it's so cold we'll go home. Because of (preposition) on account of: I lost my job because of her.
See examples of because used in a sentence. Definition of because conjunction in oxford advanced learner's dictionary. You use because when stating the reason for something.
He is called mitch, because his name is mitchell. Because it is an area of outstanding natural beauty, you can't build on it. Use because before the reason or cause for something when there are two clauses you are joining;
Use because of when a noun phrase, not a clause, describes the reason for something. "because" is a conjunction used to show cause or reason. Jul 9, 2025“because” belongs to the class of subordinating conjunctions.
Sometimes, however, because is perfectly appropriate as the opening word of a sentence. In fact, sentences beginning with because are quite common in written english, as in this example from.