한자 및 어휘 Hanja and Vocabularies

한자 

Memorizing Vocabularies through Hanja

I found a great way to memorize vocabularies.

It is through Hanja 한자 

not exactly about Chinese characters but about their meaning

Most of the Korean vocabularies are influenced by Hanja, so knowing a great amount of Hanja is pretty useful in learning Korean. If you know well enough you would be able to atleast guess what a word means correctly.

I can't explain it well so I'll give examples how it will be easy to memorize vocabularies with Hanja.
Each Hanja characters have meanings, if you know what they mean it will be probably easy to guess what a word means for example:

학 (學) = 배우다/공부하다 (To learn/Study)
Words that it can build:
학교(學校) = School
학습(學習)= Learning/Study (Korean study 한국어 학습)
학자(學者)= Scholar
학원(學院)= Academy

As you can see they all have 학 and they are all connected to studying and learning. now we can take the second 한자 from "학교(學校) = School " and learn new sets for words with it

교(校) = 학교/ 부대/장교 (school; military field)

교장(校長) = Headmaster

교문(校門)= School gate

교복(校服) = School Uniform

교장(校長)= Principal/Headmaster (교장 선생님 School Principal)

This could go on forever, 

실(室) room

화장실(化粧室) = Bathroom [화장 Means makeup (化粧)]

복(服)Dress/Clothes
교복(校服) = School Uniform
한복(韓服) = Traditional Korean Clothes

한(韓) = Korea
한국(韓國)= Korea (Country) 
국(國)= Nation Country

Here are the sites you can build your vocabularies with
http://www.hanja.me/explore.html
http://hanja.naver.com