Questions about example sentences with, and the definition and usage of "Foe"

Enemy.

Are they a friend or foe? They are/She/he is a foe You can use foe in the same way you would use enemy.

They mean the same thing. "Foe" is used more often in combat or video games.

They have the same meaning, so they are synonyms. They mean the same thing just a different word. Enemy sounds more basic, foe sounds more advanced.

意味は同じですが、Foeはちょっと古い言葉です。

Foe is Spanish for enemy (I think)

Enemy

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As an example, North Korea and South Korea are in an uneasy peace. They aren't fighting, but there is a lot of worry that they might start fighting again.

You're welcome

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there's a few typos, but otherwise it's pretty good! 1st paragraph - 'there is no doubt that our lives nowadays' would be a little more natural. 'all the modern world' sounds a little strange. maybe just 'the modern world'? 2nd paragraph - maybe use 'tolerant' instead of 'patient' because the latter implies waiting for something last paragraph - we can discover the world via foreign languages (sorry, 'via which' just sounds a little weird) hope this helps! ;)