to meet : tanışmak (to meet someone whom you never know for first time and start to introduce each other of you)

to meet : görüşmek (to meet someone whom you know, to gather with him/her so as to spend time together or to be in dialog etc.)

One uses both of these by "ile (with)".

Onunla en son Ocak´ta görüştüm./görüştük. (I/we last met him in January. (purely: I last with him in January. / I and he last met in January.))

son = en son  : last

Ocak : January

görüş+di(simple past)+m(personal suffix)--->görüştüm (I met)

ile:

http://www.turkishclass.com/turkish_lesson_308

http://www.turkishclass.com/turkish_lesson_309

http://www.turkishclass.com/turkish_lesson_310

definite simple past:

http://www.turkishclass.com/turkish_lesson_269

http://www.turkishclass.com/turkish_lesson_278

mehmet111 thank you