So...

I know there are a few words in Turkish that have several meanings, like "Pazar" which could mean either "Market" or "Sunday".

Can you guys give me more words? Tesekkurler. 

yaz - the imperative form of  the verb "yazmak " --> write

yaz  -  summer

Mektup yaz ! ---> Write a letter

Yaz geldi.  ---> The summer came.

Ben can have two different meanings ,

Ben -  I 

Ben  - Beauty spot [mark]

Beauty marks--> small, black or brown, singular moles on the face, neck, or shoulders.

Ben geldim. ---> I came.

Yüzünde ben var. ---> She has a beauty mark on her face.

"Yüz," as far as I´m aware, has 3 distinct meanings: face, one hundred, and the imperative form of "yüzmek" (to swim).

çay –Tea

çay - Stream, creek

Çay içer misiniz ---> Would you drink tea ?

Köylü kadınlar çayın kenarında çamaşır yıkıyorlar.

Village women are washing the laundry by the stream.