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Definitions

because

[bih-kawz, -koz, -kuhz] / bɪˈkɔz, -ˈkɒz, -ˈkʌz /
CONJUNCTION
on account of
Synonyms
WEAK
as as a result of as long as as things go being by cause of by reason of by virtue of considering due to for for the reason that for the sake of in as much as in behalf of in that in the interest of in view of now that on the grounds that over owing to seeing since thanks to through whereas
PREPOSITION
on account of
Synonyms
WEAK
as being by cause of by reason of by virtue of considering due to for for the reason that for the sake of in as much as in behalf of in that in the interest of in view of now that on the grounds that over owing to seeing since thanks to through whereas

Usage

What are other ways to say because? The conjunction because introduces a direct reason for an occurrence or action: I was sleeping because I was tired. As and since are so casual as to imply merely circumstances attendant on the main statement: As (or since) I was tired, I was sleeping. The reason, proof, or justification introduced by for is like an afterthought or a parenthetical statement: I was famished, for I had not eaten all day. The more formal inasmuch as implies concession; the main statement is true in view of the circumstances introduced by this conjunction: Inasmuch as I was tired, it seemed best to sleep.

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Physicists have been studying MoOCl2 for several years because of its unusual electronic structure.

From Science Daily • Jun. 1, 2026

"They thought they didn't need to because the shirt was theirs. 'But the head sticking out of it is mine,' I told them."

From BBC • Jun. 1, 2026

That is particularly important because many existing technologies, including lasers, microscopes, cameras, and sensing systems, already operate in this range.

From Science Daily • Jun. 1, 2026

The BBC heard from several people who said they might have to leave the island because of the cost of living.

From BBC • Jun. 1, 2026

It helps that Gran’s here, because telling him through her is going to make it easier.

From "Red Flags and Butterflies" by Sheryl Azzam

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