constructor
US /kənˈstrʌk.t̬ɚ/
UK /kənˈstrʌk.t̬ɚ/

1.
a person or company that builds or constructs something, especially a building or road.
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The constructor completed the new bridge ahead of schedule.
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We hired a local constructor for our home renovation.
2.
a special method, in object-oriented programming, for creating and initializing an object.
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In Java, the constructor is called when a new object is instantiated.
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Every class in C++ has at least one constructor, even if it's implicitly defined.