A short, friendly way of saying university — you just cut the word down. It is very common in British and Australian English, and students use it constantly: at uni, go to uni, finish uni, uni friends, uni life. Notice that in these phrases it often takes no 'the', the same way we say at school and at work: "She's at uni in Leeds." Americans mostly do not say this; they say college for the same idea, and an American might not even recognise uni at first.

university大學的 a short, friendly way of saying一個簡短、親切的說法，you just cut the word down只是把字縮短而已。in British and Australian English在英式和澳式英文裡 it's very common非常常見，students use it constantly學生天天這樣用：at uni在學校、go to uni去上大學、finish uni大學畢業、uni friends大學同學、uni life大學生活。in these phrases這些片語裡 it often takes no 'the'常常不加 the，the same way we say at school and at work就像我們說 at school、at work 一樣："She's at uni in Leeds."她在里茲上大學。Americans mostly do not say this美國人大多不會這樣說；they say college for the same idea他們會用 college 表達同樣的意思，and an American might not even recognise uni at first美國人甚至可能一開始聽不懂 uni。

It belongs to casual speech and messages between friends. In a job application, a scholarship essay, or anything official, write university. Saying it in an interview is not wrong exactly, but it sounds young and relaxed, which may not be the tone you want.

casual speech and messages between friends朋友間的口語和訊息 it belongs to屬於這一類。in a job application, a scholarship essay, or anything official在求職信、獎學金申請書或任何正式場合，write university要寫 university。saying it in an interview在面試裡說 uni is not wrong exactly不能說是錯，but it sounds young and relaxed不過聽起來比較年輕、隨性，which may not be the tone you want可能不是你想要的語氣。

(There is a completely different uni on menus — the Japanese word for sea urchin, the orange part you eat on sushi. Same spelling, different word entirely, and here we mean the university one.)

on menus在菜單上 there is a completely different uni還有一個完全不同的 uni——the Japanese word for sea urchin是日文的「海膽」，the orange part you eat on sushi就是壽司上吃的那塊橘色部分。same spelling拼法一樣，different word entirely但完全是不同的字，and here we mean the university one這裡指的是大學的意思。