COS


Meaning of COS in English

I .

(also 'cos ) / kɒz; NAmE kəz/ conjunction

( BrE , informal ) because :

I can't see her at all, cos it's too dark.

II .

abbreviation

(in writing) cosine

Oxford Advanced Learner's English Dictionary.      Оксфордский английский словарь для изучающик язык на продвинутом уровне.