cos
Translation
because (informal)
Examples
I can't go out cos I'm busy.
I can't go out because I'm busy.
Grammar Patterns
((cos)) + clause because I can't go out cos I have homework.
Similar Words
Synonyms: 'cause, since, as
Etymology
A shortened form of the word 'because'.
Memory Tips
Remember this as a quick, informal way to say 'because', often used in texting and casual conversation.