Definition of four words...

1)Coincidence: Tesadüf
Turkish Definition: Beklenmedik anda;beklenmedik,planlanmamış bir olayın gerçekleşmesi.
English Definition: At unexpected a time,the materialize of unexpected a incident.
Sentence:Did this happen by a coincidence or chance?
2)Scientist: Bilim adamı
Turkish Definition: Bilimsel çalışmalarla uğraşan kimse.
English Definition: Person dealing with scientific studies.
Sentence:Scientists involved who would speak to her.
3)Explain: Açıklamak
Turkish Definition: Aydınlatıcı bilgi vermek.
English Definition:  Provide enlightening information.
Sentence: Would you explain the meaning of this word to me?
4)Surroundings: Çevre,muhit
Turkish Definition: Fiziki,biyolojik,sosyal,ekonomik ve kültürel ortamların bütünü.
English Definition:  All physical,biological,social,economic and cultural of ambients.
Sentence:We are looking for a flat in quiet surroundings.