The West
Western Countries, Western
noun, の adjective
Go west until you encounter Western style buildings and customs and languages everywhere. Hey, you've made it to the West!
西洋 refers to Western countries, especially European and English-speaking countries. It's the same kind of "West" that people mean when they talk about Western culture and all that.
This is a jukugo word that uses the on'yomi readings of the kanji. You haven't learned this reading yet for 西 (せい), so here's a mnemonic to help you out:
People are attacking from the West, so you pull out your saber (せい) and beat them back. You keep pushing further and further west until you reach the ocean and there's nowhere left for them to run. Your saber saves the day! Take that, the West.
西洋の国にはまだ行ったことがないんです。
I haven't been to any western countries yet.
ハグは西洋の文化だと言えるでしょう。
We could say hugging is a part of Western culture.
西洋人は家の中で靴を履いて過ごすんですか？
Do Westerners spend their time in shoes at their homes?