How do you say the word SMALL in Korean?

The most common way to say "small" in Korean is 작다 (jakda). This is an adjective. You would use it like this:

* 작은 차 (jakeun cha): small car

* 작은 집 (jakeun jip): small house

Note that `작은 (jakeun)` is the adjective in its attributive form (modifying a noun).