Tell a seven letter english word in which: First-two letters indicate a boy

🎋Quiz ....
Tell a seven letter
english word in which: First-two letters indicate a boy…..                    
First-three letters indicate a girl…..       
First -four letters indicate a boy…..          And whole word indicates a girl….        let’s c who’s genius

For answer click following link

http://www.quantfunda.in/2014/09/answer-7letter-word.html