opacity - Master This Word
Master this word with our 5-step learning method – Learn English in English
opacity Word Meanings
- the quality of being opaque
- lack of transparency
- obscurity or difficulty to understand
opacity Example Sentences
Example sentences are the start of understanding. Don't rush to memorize. First feel how the word works in a sentence.
opacity Phonetic & Pronunciation
UK
/əʊˈpæs.ɪ.ti/
US
/oʊˈpæs.ɪ.ti/
opacity Word Etymology
Root decomposition: 'opa-' (Latin) + suffix '-city'. Historical origin: from Latin 'opacus' meaning 'dark, shady' → Old French → English. Memory image: Imagine a thick fog obscuring your view, representing the concept of opacity where things can't be seen clearly.
Note 1: These definitions and etymologies are not standard dictionary definitions, but extended explanations provided to help with memorization and understanding of the actual application of words. Through this background information, we strive to make words more vivid and easier to understand, and help you remember their meanings in real life.
Note 2: LexiTalk designs the learning flow around the linguistics principle of “Comprehensible Input.” When learners encounter material that is slightly above their level but still understandable from context, the brain naturally absorbs the language. That’s why we keep every word inside authentic contexts, using examples and associations to help you understand it and use it flexibly.
Read the FAQ explanation of Comprehensible InputReal Context
Opacity describes the property of a material or medium that prevents light from passing through clearly. In everyday use it can refer to something that is not transparent, as in frosted glass, or to information that is not easily understood or revealed, as in a report with high opacity. The term is used in science to measure how much light a substance blocks, and in computing or design to describe how visible something is on a screen or in an interface. Learners should note that opacity is a noun; its related adjective is opaque, and the word often appears in phrases like high opacity or low opacity to describe how difficult it is to see through or understand.
Usage Reminders
- Opacity is a noun
- Use high opacity to describe things that are hard to see through
- Often paired with 'high' or 'low' opacity
- Don’t confuse opacity with ‘transparent’ or ‘opaque’ as an adjective
- In CSS, opacity is a number from 0 to 1, not a color value
Common Misconceptions
- Opacity means the material is completely solid
- If something is opaque, it must be black
- Opacity only refers to light, not information
- Opacity and transparency are the same thing
- Opacity cannot be measured or compared
Thinking Differences
In English, opacity is often introduced as the opposite of transparency and is tied to both physical materials and abstract clarity; learners frequently confuse it with terms like transparent and translucence, or mix up high/low opacity with color intensity. Emphasize collocations (high/low opacity) and the noun/adjective distinction (opacity vs opaque).
Learning Tips
- Master the noun/adjective pair: opacity vs opaque
- Remember 0-1 scale in CSS for opacity
- Use high/low opacity with physical objects
- Compare with transparency to grasp metaphors
- Practice with both materials and information contexts
- Create visual or data examples to reinforce
5-Step Learning Method - Learn English in English
Step 1: Meaning
What does the word 'opacity' mean?
A.Clarity or transparency
B.Brightness of an object
C.Color depth in images
D.Physical strength of materials
Step 2: Usage
Which sentence uses 'opacity' correctly?
A.The opacity of the glass allows light to pass through easily.
B.He was so transparent in his answers, there was no opacity at all.
C.The opacity of her laughter made everyone feel better.
D.They decided to measure the opacity of the new paint applied.
Step 3: Similar Words
Which word is most similar to 'opacity'?
A.Brightness
B.Brightness
C.Transparency
D.Vividness
Step 4: Opposite Words
What is the opposite of 'opacity'?
A.Clarity
B.Density
C.Obscurity
D.Thickness
Step 5: Mastery
Can you think of a real-life scenario where the concept of opacity is important?
A.People often choose clear windows over frosted ones for better visibility.
B.The hidden message lacked clarity, making it hard to understand.
C.In some artistic contexts, the opacity of paint affects the layering technique.
D.She prefers to work with materials that have a beautiful thickness.
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