Formal Suffixes: -ity, -ize, & Degree (性, 化, 度)
性 for qualities, 度 for measurable levels, and 化 for processes of change to sound professional.
Grammar Rule in 30 Seconds
Master the suffixes {性|xìng} (quality), {化|huà} (process/change), and {度|dù} (degree) to transform basic words into sophisticated academic vocabulary.
- {性|xìng} creates abstract nouns: {可能|kěnéng} (possible) → {可能性|kěnéngxìng} (possibility).
- {化|huà} creates verbs of change: {现代|xiàndài} (modern) → {现代化|xiàndàihuà} (modernize).
- {度|dù} measures intensity or extent: {满意|mǎnyì} (satisfied) → {满意度|mǎnyìdù} (satisfaction level).
Overview
In your journey to Chinese fluency, you move from describing the world to analyzing it. You stop just saying a movie is 好看 (good-looking) and start discussing its 艺术性 (artistic nature) or 商业化 (commercialization). This leap into abstract, formal discourse is powered by a set of incredibly useful suffixes.
Three of the most important are 性 (xìng), 度 (dù), and 化 (huà). These are not just vocabulary; they are grammatical tools that build concepts. They correspond roughly to English suffixes like “-ity,” “-ness,” “-degree,” and “-ize/-ization.”
Mastering these suffixes is the key to unlocking C1-level proficiency. It allows you to shift from concrete statements about objects and events to sophisticated discussions about qualities, systems, processes, and trends. They are the building blocks of academic, technical, and professional language.
While casual conversation focuses on what is, these suffixes allow you to discuss the nature of what is (性), the extent of what is (度), and the process by which it becomes something new (化). Understanding their distinct functions and appropriate contexts is essential for writing a compelling report, understanding a news analysis, or participating in a high-level business meeting.
Historically, the widespread use of these suffixes grew with Modern Standard Chinese. As the language needed to incorporate and discuss complex scientific, sociological, and political concepts from the West, these native characters were adapted to create a new, formal lexicon. 性 provides a way to talk about inherent properties, 度 to quantify them, and 化 to describe their evolution—a complete toolkit for modern analysis.
How This Grammar Works
性 (xìng) — The Nature or Intrinsic Quality (-ity, -ness, -bility)性 abstracts a quality, transforming it into a standalone concept. It describes the inherent, fundamental nature or property of something. Think of it as answering the question, “What is its essential characteristic?” It often implies a binary state—something either possesses this quality or it does not.可能(kěnéng), an adjective meaning "possible," becomes可能性(kěnéngxìng), the noun for "possibility." This allows you to discuss possibility as a concept:我们必须考虑到每一种可能性。(Wǒmen bìxū kǎolǜ dào měi yī zhǒng kěnéngxìng.) - "We must consider every possibility."
度 (dù) — The Degree or Measurable Extent (-level, -rate)度 quantifies a quality. It turns an adjective or state into a measurable dimension, implying a scale from low to high. It answers the question, “To what extent?” or “How much?” If 性 is a toggle switch (on/off), 度 is a slider.透明(tòumíng), an adjective for "transparent," becomes透明度(tòumíngdù), the noun "transparency." You can then measure it:政府需要提高政策的透明度。(Zhèngfǔ xūyào tígāo zhèngcè de tòumíngdù.) - "The government needs to increase the transparency of its policies."
化 (huà) — The Process of Transformation (-ize, -ify, -ization)化 signifies change, process, or transformation. It is dynamic, whereas 性 and 度 are generally static. It answers the question, “What is it becoming?” or “What is the process of change?” 化 is uniquely versatile; it can function as a suffix to create a noun representing the entire process (e.g., globalization), or it can function as a verb ending, meaning “to -ize” or “to -ify” (e.g., to globalize).现代(xiàndài), an adjective meaning "modern," becomes现代化(xiàndàihuà). As a noun:中国的现代化是一个复杂的过程。(Zhōngguó de xiàndàihuà shì yīgè fùzá de guòchéng.) - "China's modernization is a complex process." As a verb:我们必须将我们的系统现代化。(Wǒmen bìxū jiāng wǒmen de xìtǒng xiàndàihuà.) - "We must modernize our system."
Formation Pattern
性 (xìng)
重要 (zhòngyào) (adj.) | Important | + 性 | 重要性 (zhòngyàoxìng) | Importance |
安全 (ānquán) (adj.) | Safe | + 性 | 安全性 (ānquánxìng) | Safety (as a feature/property) |
合法 (héfǎ) (adj.) | Legal | + 性 | 合法性 (héfǎxìng) | Legality / Legitimacy |
创造 (chuàngzào) (verb) | To create | + 性 | 创造性 (chuàngzàoxìng) | Creativity |
积极 (jījí) (adj.) | Active / Positive | + 性 | 积极性 (jījíxìng) | Initiative / Eagerness |
度 (dù)
满意 (mǎnyì) (adj.) | Satisfied | + 度 | 满意度 (mǎnyìdù) | Satisfaction Level / Rate |
知名 (zhīmíng) (adj.) | Well-known | + 度 | 知名度 (zhīmíngdù) | Degree of Fame / Profile |
清晰 (qīngxī) (adj.) | Clear | + 度 | 清晰度 (qīngxīdù) | Clarity / Resolution (e.g., of a screen) |
硬 (yìng) (adj.) | Hard | + 度 | 硬度 (yìngdù) | Hardness (scientific measurement) |
好感 (hǎogǎn) (noun) | Favorable impression | + 度 | 好感度 (hǎogǎndù) | Favorability Rating |
化 (huà)
化 words can be used as both nouns and verbs.
全球 (quánqiú) (noun) | Global | + 化 | 全球化 (quánqiúhuà) | Globalization / To globalize |
工业 (gōngyè) (noun) | Industry | + 化 | 工业化 (gōngyèhuà) | Industrialization / To industrialize |
简单 (jiǎndān) (adj.) | Simple | + 化 | 简单化 (jiǎndānhuà) | Simplification / To simplify |
城市 (chéngshì) (noun) | City | + 化 | 城市化 (chéngshìhuà) | Urbanization / To urbanize |
老龄 (lǎolíng) (noun) | Old age | + 化 | 老龄化 (lǎolínghuà) | (Population) aging |
When To Use It
- Academic & Scientific Writing: Essential for defining terms and discussing concepts. e.g.,
本研究旨在探讨其可行性。(Běn yánjiū zhǐ zài tàntǎo qí kěxíngxìng.) - "This research aims to investigate its feasibility." - Business & Corporate Communication: Used constantly in reports, presentations, and emails to discuss strategy, performance, and metrics. e.g.,
我们需要提升客户的满意度。(Wǒmen xūyào tíshēng kèhù de mǎnyìdù.) - "We need to increase customer satisfaction levels." - News & Journalism: Standard for analyzing social, political, and economic trends. e.g.,
专家担心新闻的过度娱乐化。(Zhuānjiā dānxīn xīnwén de guòdù yúlèhuà.) - "Experts worry about the excessive 'infotainment-ization' of news." - Technical Documentation: Used to describe specifications and properties. e.g.,
请调整屏幕的亮度。(Qǐng tiáozhěng píngmù de liàngdù.) - "Please adjust the screen's brightness level."
这个问题很重要。 (This problem is very important.) | 我们必须认识到这个问题的重要性。 (We must recognize the importance of this problem.) | Business Meeting |这个软件用起来很方便。 (This software is very convenient to use.) | 这款软件的便利性是其主要卖点。 (The convenience of this software is its main selling point.) | Product Pitch |越来越多的人搬到城市。 (More and more people are moving to cities.) | 中国的城市化进程在过去三十年里显著加速。 (China's urbanization process has accelerated significantly in the past 30 years.) | Academic Paper |老板对我的工作很满意。 (The boss is very satisfied with my work.) | 年终评估显示了较高的员工满意度。 (The year-end evaluation shows a high rate of employee satisfaction.) | HR Report |Common Mistakes
性 to Any Adjective性 can be attached to any adjective to make it a noun. This is incorrect. You cannot say 高兴性 for happiness (use 高兴 or 快乐) or 漂亮性 for beauty (use 美丽). 性 is reserved for more formal, often technical or philosophical properties. Stick to established collocations you have seen or heard.性 and 度- Use
性for the intrinsic nature or property (a toggle switch: yes/no). Does it have this quality? - Use
度for the measurable level or degree (a slider: low/high). How much of this quality does it have?
敏感 (mǐngǎn) - "sensitive."敏感性(mǐngǎnxìng) is "sensitivity" as an inherent property. A topic can have政治敏感性(political sensitivity). A person can have皮肤的敏感性(skin sensitivity).敏感度(mǐngǎndù) is the "degree of sensitivity." You adjust your camera'sISO敏感度(ISO sensitivity level). You can measure a device's敏感度.
性 Version (Nature) | 度 Version (Degree) | Distinction |可能 (possible) | 可能性 (possibility) | 可信度 (credibility/trustworthiness) | 可能性 is the abstract chance something might happen. 可信度 measures how believable a source or story is. |安全 (safe) | 安全性 (safety as a property) | 安全度 (level of safety) | 安全性 is a feature to be tested (测试汽车的安全性). 安全度 is a rating you might give (这个地区的安全度很高). 性 is more common for technical evaluation. |稳定 (stable) | 稳定性 (stability as a quality) | 稳定度 (degree of stability) | A system's 稳定性 is a core design goal. The 稳定度 is how you might measure its performance over time. Again, 性 is more for the inherent property. |这顿饭的可食性很高 (Zhè dùn fàn de kěshíxìng hěn gāo - "This meal's edibility is high"), instead of 真好吃 (zhēn hǎochī - "It's delicious!"), you will sound like a food safety inspector, not a friend. Reserve these for the appropriate formal situations.化 with 变 or 变得变 (biàn) and 变得 (biànde) mean "to change" or "to become," but they describe a change in the state of a specific subject. 化 implies a broader, systemic, and often planned or analyzed process.天气变冷了。(Tiānqì biàn lěng le.) - The weather became cold. (Specific state change)天气冷化了。(Incorrect.*化doesn't apply to a simple state change like weather.)全球暖化(Quánqiú nuǎnhuà) - Global warming. (A large-scale, systemic process.)他变得很安静。(Tā biànde hěn ānjìng.) - He became very quiet. (Personal change)他被边缘化了。(Tā bèi biānyuán huàle.) - He was marginalized. (化used to show a systemic process of being pushed to the side.)
Real Conversations
Here is how you might encounter these suffixes in authentic, modern contexts.
1. At the Office (Email Snippet)
Subject
关于Q3产品迭代的几点思考 (A few thoughts on the Q3 product iteration)...我们必须优先处理用户反馈的兼容性 (jiānróngxìng) 问题，同时，UI设计应进一步简化，以提高产品的易用性 (yìyòngxìng)。数据表明，新功能的用户参与度 (cānyùdù) 仍有提升空间。下一步的重点是优化 (yōuhuà) 核心算法...
- Translation & Analysis: "...We must prioritize resolving the compatibility (-ity) issues reported by users. At the same time, the UI design should be further simplified to improve the product's ease-of-use (-ity). Data shows that the user engagement rate (-rate/-degree) for the new feature still has room for improvement. The next step is to optimize (-ize) the core algorithm..."
2. On Social Media (Weibo Post)
现在很多节日都越来越商业化 (shāngyèhuà) 了，失去了原本的文化意义。这种现象的普遍性 (pǔbiànxìng) 值得我们反思。
- Translation & Analysis: "So many festivals are becoming more and more commercialized (-ization) now, losing their original cultural meaning. The universality (-ness) of this phenomenon is worth our reflection."
3. Tech Review (Bilibili Video Script)
这款新手机的相机传感器尺寸很大，所以弱光环境下的清晰度 (qīngxīdù) 非常惊人。它的系统也实现了高度的模块化 (mókuàihuà)，用户可以自定义很多功能。
- Translation & Analysis: "This new phone's camera sensor is very large, so its clarity (-level) in low-light environments is amazing. Its system has also achieved a high degree of modularization (-ization), allowing users to customize many functions."
Quick FAQ
性, 度, or neither?There's no perfect formula, and it mostly comes down to exposure and memorizing collocations. However, a good heuristic is to ask: Is it an intrinsic, often binary, property? Try 性. Is it a measurable scale? Try 度. Is it a process of transformation? Try 化. For everything else, there's probably a different, more basic noun.
化?Yes, 化 is a highly productive suffix in modern Chinese, especially in internet and youth culture. You'll see neologisms like 饭圈化 (fànquānhuà - to become like a fan circle) or 内卷化 (nèijuǎnhuà - involution/to become involuted). While creative, it's best to stick to established terms in formal exams or professional writing unless you're sure the neologism is widely understood in that context.
度 only for scientific or technical measurements?Not at all. While it's used for physical properties like 硬度 (hardness) or 亮度 (brightness), it's extremely common for social and user-experience metrics. 好感度 (favorability rating), 满意度 (satisfaction rate), and 知名度 (level of fame) are used constantly in business, marketing, and even daily entertainment.
安全 and its 性 form, 安全性?安全 (ānquán) can be an adjective ("safe") or a simple noun ("safety"). 安全很重要 ("Safety is important"). 安全性 (ānquánxìng) refers specifically to safety as an abstract property or performance characteristic that can be assessed, tested, and compared. You discuss a car's 安全性, a system's 安全性, or a policy's 安全性. It isolates 'safety' as a formal criterion for evaluation.
化 words can be nouns or verbs. How can I tell which it is?Context is everything. If it's the object of a verb (like in 加速现代化 - accelerate modernization) or has a noun marker like 的, it's a noun. If it acts directly on an object (like in 现代化我们的系统 - modernize our system) or follows a 被 or 把 structure, it's acting as a verb. Many sentences can be ambiguous without further context, but the dual potential is its key feature.
Suffix Formation Table
| Root Word | Suffix | Resulting Word | Function |
|---|---|---|---|
|
可能
|
性
|
可能性
|
Abstract Noun
|
|
现代
|
化
|
现代化
|
Verb/Noun
|
|
满意
|
度
|
满意度
|
Measurement
|
|
重要
|
性
|
重要性
|
Abstract Noun
|
|
全球
|
化
|
全球化
|
Process
|
|
参与
|
度
|
参与度
|
Measurement
|
Meanings
These suffixes are essential for nominalizing adjectives and verbs, allowing for precise academic and professional expression.
Abstract Quality
Turning adjectives into nouns denoting a state or quality.
“{重要性|zhòngyàoxìng} (importance)”
“{复杂性|fùzáxìng} (complexity)”
Process/Transformation
Turning nouns or adjectives into verbs or nouns of process.
“{全球化|quánqiúhuà} (globalization)”
“{工业化|gōngyèhuà} (industrialization)”
Degree/Measurement
Quantifying a state or feeling.
“{参与度|cānyùdù} (participation level)”
“{自由度|zìyóudù} (degree of freedom)”
Reference Table
| Form | Structure | Example |
|---|---|---|
|
Quality
|
Adj + 性
|
必要性
|
|
Process
|
Noun + 化
|
工业化
|
|
Degree
|
Verb + 度
|
配合度
|
|
Negative
|
非 + Root + 性
|
非必要性
|
|
Question
|
Root + 性 + 吗?
|
有必要性吗?
|
|
Comparison
|
Root + 度 + 高
|
信任度高
|
Formality Spectrum
此事的{重要性|zhòngyàoxìng}。 (Professional meeting)
这件事很重要。 (Professional meeting)
这事儿挺重要的。 (Professional meeting)
这事儿得看。 (Professional meeting)
Suffix Concept Map
Quality
- 可能性 Possibility
Process
- 全球化 Globalization
Degree
- 满意度 Satisfaction
Examples by Level
这是{可能性|kěnéngxìng}。
This is a possibility.
我们要{现代化|xiàndàihuà}。
We want to modernize.
他的{参与度|cānyùdù}很高。
His participation level is high.
这个项目的{复杂性|fùzáxìng}很大。
The complexity of this project is great.
我们需要提高{透明度|tòumíngdù}。
We need to increase transparency.
该理论的{普适性|pǔshìxìng}值得探讨。
The universality of this theory is worth discussing.
Easily Confused
Both turn adjectives into nouns.
Common Mistakes
重要化
重要性
满意性
满意度
全球性化
全球化
高透明性
高透明度
Sentence Patterns
这个___的___很高。
Real World Usage
请确认项目的{进度|jìndù}。
Listen to News
Smart Tips
Use these to sound professional.
Pronunciation
Tone consistency
All three suffixes have specific tones that must be clear.
Memorize It
Mnemonic
Think of 'Xing' as a 'Thing' (Quality), 'Hua' as a 'Change' (Process), and 'Du' as a 'Degree' (Measurement).
Visual Association
Imagine a scale (Du) measuring a block of ice melting (Hua) into a puddle of 'Quality' (Xing).
Rhyme
Xing for the state, Hua for the rate, Du for the weight.
Story
The company decided on 'Modernization' (Hua). They checked the 'Satisfaction' (Du) of the employees. They realized the 'Importance' (Xing) of the project.
Word Web
Challenge
Write three sentences about your current job using one of each suffix.
Cultural Notes
These suffixes are heavily used in corporate jargon.
These suffixes evolved from classical Chinese characters used as independent nouns.
Conversation Starters
你认为这个项目的{可行性|kěxíngxìng}如何？
Journal Prompts
Common Mistakes
Test Yourself
这个产品的{重要___}很高。
Score: /1
Practice Exercises
1 exercises这个产品的{重要___}很高。
Score: /1
Practice Bank
13 exercises随着科技的发展，我们的生活越来越自动___了。
这部电影的___很高，大家都在讨论。
Choosing the right suffix for 'danger'.
Match correctly:
请提高你的工作效率性。
重要性 / 的 / 强调 / 环保 / 我们 / 要
Urbanization is proceeding rapidly: 城市___ 正在快速进行。
Select the word containing the 'measure/degree' suffix.
Translate 'Personalization' (as in settings).
为了保证公平___，我们需要第三方监督。(To ensure fairness...)
My happiness level is high: 我的快乐性很高。
Identify the process word.
The reliability of this car is good: 这辆车的可靠___ 很好。
Score: /13
FAQ (1)
No, it sounds too formal.
Scaffolded Practice
1
Mastery Progress
Needs Practice
Improving
Strong
Mastered
In Other Languages
-idad
Mandarin suffixes are more productive.
Learning Path
Prerequisites
Related Grammar Rules
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