Turkish is a very complicated language with some unusual letters in the alphabet. Pronunciation is easy but grammar is not. For more information on the Turkish language go to Travlang.
To master a few words is not difficult however and will be greatly appreciated by the locals considering the fact that you are a "yabanci", (foreigner). Here are some essential words.
Essential:
I do not understand anlamiyorum
Where is the bathroom? tuvalet nerede?
Other:
Yes - evet
No - hayir
Thank you - tesekkürler; tesekkur ederim
You're welcome - Bir sey de-gil
Please - lutfen
Excuse me - özur dilerim, pardon
Hello - merhaba; selam
What's up - ne haber?
Goodbye - glue glue, alahsmaladik
Good morning - gunaydin
Good afternoon - iyi gunler, iyi ö-glenler
Good evening - iyi aksamlar
Good night - iyi geceler
Good - iyi
Bad - Kötü
Wife - Kari
Husband - Koca
Child - Cocuk
Daughter - Kiz cocuk
Son - Erkek cocuk
Mother - Anne
Father - Baba
Friend - Dost