تلفظ بین المللی : /kɹˈɒstɹiːz/ تلفظ : [kr'0stri:z]
English
The act of operating or working; operation. [R.]
Pieces of timber at a masthead, to which are
attached the upper shrouds. At the head of lower masts in large
vessels, they support a semicircular platform called the "top."
