同一個國家的人
這一邊把 country 讀成「國家」。因為「同國」一定是相對於某個人講的，所以這個用法幾乎都要先說是誰的同胞。
noun · B2
Someone who comes from the same country as you. It is nearly always used with a word showing whose: my countryman, her countrymen, our fellow countrymen.
同胞
核心畫面
You can think of countryman as a man named by the land he belongs to. First say which land you mean, and the word tells you which kind of belonging you are talking about. If the land is a nation, he is one of your own people. If the land is the fields outside the towns, he is a man who lives there and lives that life.
countryman 可以想成「用一塊土地來稱呼一個人」。你得先指定是哪一塊土地，這個字才知道你在講哪一種關係。如果…更多收起
countryman 可以想成「用一塊土地來稱呼一個人」。你得先指定是哪一塊土地，這個字才知道你在講哪一種關係。如果那塊土地是「國家」，他就是跟你同一國的人，所以前面要放 my、his、our。如果那塊土地是「鄉間」，他就是住在那裡、過那種日子的人。country 這個字本身就有這兩層意思，countryman 也就跟著分成兩邊。From the word’s history
Wiktionary records countryman as country + -man. The two modern meanings follow the two meanings of country itself: a nation, and the land outside the towns.
Wiktionary 記錄 countryman 來自 country 加上 -man。今天的兩個意思，正好跟著 country 自己的兩個意思走：一個是「國家」，一個是「鄉間」。所以這不是比喻，而是同一個組合裡的第一個字被讀成了不同的意思。
Wiktionary entry 'countryman' (source_ref kaikki:3f6f69a190036ae4:1178143343): 'From country + -man.'
Two branches
住在鄉間的男子
這一邊把 country 讀成「鄉間」。不需要對照別人，只要說明他住哪裡、過什麼樣的生活，字義就完整了，所以前面通常不加 my、his。
noun · B2
A man who lives in the countryside rather than in a town or city, especially one who knows country life well and takes part in it, such as farming, walking, or working with animals.
鄉下人