cos

 Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++cos1, 'cos, coz /kəz/ conjunction British English spoken informal  BECAUSEbecause 因为 I don’t get out much now cos of the children. 因为孩子的关系，我现在不大出去了。cos2 noun (plural coses or cos) [countable, uncountable] British English  a type of lettuce 直立莴苣，长叶莴苣 SYN romaine

Related topics: Maths

cos3 /kɒz, kɒs $ kɑːs/ technical  HMthe written abbreviation of cosine / cosine 的书面缩写 ，〔数学的〕余弦

cos1 conjunctioncos2 nouncos3Chinese  

cos

I

cos¹ , __cos, coz /kəz/ conjunction British English spoken informal
because:
    I don’t get out much now cos of the children.

II

cos² noun (plural coses, cos) [uncountable and countable] British English
a type of lettuce
   SYN  romaine

III

cos³ /kɒz, kɒs $ kɑːs/ technical
the written abbreviation of cosine