This is the 8288th most frequent Korean word.
o
The Korean word "o" (오) can mean "five" (the numeral) or be part of other contexts depending on usage.
The word 'o' is used in '오늘' (today), which is a noun referring to the present day. It serves as a part of a compound word.
오늘은 날씨가 정말 좋네요.
The weather is really nice today.
The word 'o' appears in '오래된' (old), where it functions as part of an adjective describing something aged or longstanding.
오래된 친구를 만났어요.
I met an old friend.
Here 'o' is used as part of the word '어땠어요' (how was it), which is a phrase inquiring about the state or opinion of an object or situation after interaction.