almak, satın almak

almak, satın almak: to buy

Bugün bir kilo erik aldım. 
Today I bought a kilo of plums.

Araba almak istiyorlar ama paraları yok.
They want to buy a car but they do not have money.

Baba, bana yeni bir bilgisayar alabilir misin? 
Dad, can you buy a new computer for me?

Note: We seldom say "satın almak". We usually just say "almak" instead. And "almak" also means "to take". Sounds like we buy it for free, doesnt it? :)