def
def — 形容詞
- defpositive
- deffercomparative
- deffestsuperlative
1. extremely good, impressive, or stylish — an informal way to express strong appro
超讚；超酷
非常棒的；極酷的（非正式俚語）
extremely good, impressive, or stylish — an informal way to express strong approval, originally from hip-hop and skateboard culture.
Heloísa said the band's live show was def, especially the drum solo.
Heloísa 說那支樂團的現場表演超讚，尤其是鼓的獨奏。
predicative after 'was'
The graphic design on that album cover is totally def — the colors really pop.
那張專輯封面的平面設計超酷——顏色真的很搶眼。
collocation: totally def
Bilal's mural is so def that people travel across the city to photograph it.
Bilal 的壁畫太讚了，有人專程從城市另一端來拍它。
That vintage denim jacket Charlotte found at the flea market is absolutely def.
Charlotte 在跳蚤市場找到的那件復古牛仔外套絕對超酷。
- terrible
opposite in quality judgment
文法句型
def (predicative after be/look/sound)
totally/absolutely def
用法筆記
Originated in 1980s African American Vernacular English and hip-hop culture. Now less common in everyday conversation than synonyms like 'awesome' or 'cool'; using it today can sound deliberately retro or nostalgic. Not used in formal writing.
常見錯誤
def — 副詞
1. a short informal form of 'definitely', used in casual speech, text messages, and
一定；肯定
非正式用語表肯定
a short informal form of 'definitely', used in casual speech, text messages, and social media to express strong agreement or to emphasize that something is certain.
A: Are you coming to the barbecue on Saturday? B: Def — I will bring dessert.
甲：星期六你要來烤肉嗎？乙：一定——我會帶甜點。
short answer usage
Indra def needs a vacation after working twelve days in a row.
Indra 連續工作了十二天，肯定需要放個假。
def + verb (position before main verb)
We def should try that new Ethiopian restaurant on Elm Street this weekend.
我們這週末一定得去試試 Elm 街上那家新開的衣索比亞餐廳。
That documentary about coral reefs is def worth watching — the underwater footage is stunning.
那部關於珊瑚礁的紀錄片絕對值得一看——水下的畫面美極了。
Shanti def deserves the scholarship after all her volunteer work with refugees.
Shanti 為難民做了那麼多志工服務，肯定值得拿到獎學金。
- definitely
the standard full form; appropriate in all registers
- for sure
similar informal register, slightly less emphatic
- absolutely
more emphatic and slightly more formal
- definitely not
opposite meaning; also used informally
文法句型
def (before main verb)
def (as short answer)
def + modal (will/can/should)
用法筆記
Very common in text messages and casual speech. In professional emails or academic writing, write 'definitely' in full. The abbreviation 'def.' (with a period) appears in informal note-taking and meeting minutes.
常見錯誤
def — 名詞
1. the short informal form of 'definition', used either for the meaning of a word o
定義
詞義或畫質簡稱
the short informal form of 'definition', used either for the meaning of a word or as part of 'high-definition' to describe the sharpness of an image, video, or screen.
Charlotte asked her teacher for the def of 'photosynthesis' for the biology quiz.
Charlotte 問老師「光合作用」的定義是什麼，為生物學小考做準備。
pattern: the def of [word]
The new television supports ultra-high def, with four times more detail than older screens.
那台新電視支援超高畫質，細節比舊螢幕多出四倍。
compound: ultra-high def
Leo looked up the def of 'algorithm' in simple terms for his computer science class.
Leo 為了電腦科學課，查了「演算法」的簡單定義。
This camera shoots in high def, so the wildlife footage looks incredibly crisp and clear.
這台相機可以拍高畫質，所以野生動物的畫面看起來非常清晰。
- definition
the full form; appropriate in all contexts
- meaning
broader; can refer to intention or significance
文法句型
the def of [word/phrase]
high def / ultra-high def
what's the def of
用法筆記
The standalone use ('what's the def') is very informal. The compound forms 'high-def' and 'ultra-high def' are common in product descriptions and technology reviews, even in semi-formal writing.
常見錯誤
2. a written abbreviation for 'defendant' or 'defense', used in legal documents, co
被告；辯護
法律文件中「被告」或「辯護方」的縮寫
a written abbreviation for 'defendant' or 'defense', used in legal documents, court records, and case summaries to refer to the person accused or the team representing them.
The def. entered a plea of not guilty during the hearing this morning.
被告在今早的聽證會上提出無罪抗辯。
abbreviation for defendant
The def.'s lawyer filed a motion asking the judge to dismiss the case.
被告的律師提出動議，要求法官駁回此案。
possessive: def.'s + noun
Both the prosecution and the def. agreed to reach a settlement before the trial date.
檢方和辯方雙方在開庭前達成和解。
In the court transcript, 'def.' appears as an abbreviation for the defendant in every entry.
在庭審筆錄中，每一條記錄都用「def.」作為被告的縮寫。
- defendant
the full term; preferred in spoken courtroom language
- the accused
used in criminal cases, more general
- prosecution
the opposing party in a criminal trial
- plaintiff
the opposing party in a civil case
文法句型
the def. (in case documents)
def.'s attorney/lawyer
用法筆記
Always written with a period in formal legal texts. The plural form 'defs.' can appear when multiple defendants are involved. Contrast with 'pl.' (plaintiff) in civil cases.
常見錯誤
3. a written abbreviation for 'deferred', indicating that a payment, deadline, admi
延期
表示付款、期限或決定延後的縮寫
a written abbreviation for 'deferred', indicating that a payment, deadline, admission decision, or project milestone has been postponed to a later date.
The tuition payment was marked as def. until the spring semester.
這筆學費被標記為延期至春季學期繳納。
pattern: marked as def.
Aoi's university application showed 'def.' while the committee reviewed her additional documents.
Aoi 的大學申請顯示「延期」，因為審查委員會還在審閱她補交的文件。
status label in administrative records
The company listed the annual bonus as def. because of the economic downturn this year.
由於今年的經濟衰退，公司將年終獎金列為延期發放。
Adina applied for a def. payment plan to cover her medical bills over twelve months.
Adina 申請了延期付款計畫，分十二個月支付她的醫療費用。
- current
the opposite status for payments or deadlines
文法句型
marked as def.
listed as def.
def. payment
用法筆記
Primarily found in financial statements, academic records, and project management documents. The full word 'deferred' is preferred in spoken communication and formal correspondence.