laser - Master This Word
Master this word with our 5-step learning method – Learn English in English
laser Word Meanings
- a device that emits a narrow beam of light
- a technology used in surgery and cutting
- an acronym for 'Light Amplification by Stimulated Emission of Radiation
laser Example Sentences
Example sentences are the start of understanding. Don't rush to memorize. First feel how the word works in a sentence.
laser Phonetic & Pronunciation
UK
/ˈleɪ.zə/
US
/ˈleɪ.zɚ/
laser Word Etymology
Root decomposition: 'light' (light) + 'amplification' (to make larger) + 'stimulated emission' (radiation that is caused to emit). Historical origin: Latin → English (from Latin 'lux' for light). Memory image: Imagine a beam of light that is amplified and precisely focused, cutting through darkness like a laser beam cutting through wood.
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 InputEnglish Brain Route
I place a finger on the switch and coax the laser to wake up. I move the tool along the seam, keeping a steady pace as the beam tightens the cut. If the line shifts, I adjust the angle and pull a little to bring it back in line. The sense of control grows as I let the machine do the precise work and set the task in front of me.
Real Context
Laser is a device that emits a narrow, highly focused beam of light with remarkable coherence and directionality. The term comes from an acronym: Light Amplification by Stimulated Emission of Radiation. In practice, lasers are used for precise cutting, delicate surgery, data transmission, and scientific measurement. The concept blends physics with everyday technology, making it familiar in both industrial settings and consumer gadgets like laser pointers. Etymology traces back to light and amplification, with roots in Latin for light and later English usage of technical terms. To picture it, imagine a beam that remains tight and bright over long distances, able to slice through darkness with minimal collateral heat.
Usage Reminders
- - Laser is usually a countable noun when referring to a device
- - Don’t confuse a laser with a simple laser pointer
- - The acronym is common in tech contexts, but not always spoken aloud
- - In science writing, treat it as a specialized term rather than a generic light
- - Use lowercase l unless starting a sentence or part of a title
Common Misconceptions
- A laser is just a weapon seen in science fiction
- All lasers are dangerous and hot
- Laser pointers are the same as medical lasers
- A laser beam is always visible
- The acronym is optional and often ignored in everyday speech
Thinking Differences
Explain to an English speaker (meta, keep short)
Learning Tips
- Practice distinguishing laser as device vs concept
- Note the lowercase spellings in ordinary text
- Remember the acronym only in formal science contexts
- Watch for collocations like laser surgery or laser cutting
- Compare with related terms like flashlight or beam to see nuance
5-Step Learning Method - Learn English in English
Step 1: Meaning
What is the meaning of the word 'laser'?
A.A tool used in cooking
B.A device that emits a narrow beam of light
C.A type of fruit
D.A musical instrument
Step 2: Usage
Which of the following sentences uses the word 'laser' correctly?
A.She played the laser at the park.
B.I listened to soothing music on the laser.
C.The cat chased after the laser beam on the floor.
D.He used a laser pointer to highlight key points in the presentation.
Step 3: Similar Words
Which word is a synonym of 'laser'?
A.Candle
B.Sword
C.Firecracker
D.Flashlight
Step 4: Opposite Words
What is the opposite of 'laser'?
A.Sunlight
B.Rainbow
C.Siren
D.Darkness
Step 5: Mastery
In what real-life context would you likely encounter a 'laser'?
A.Conducting surgery
B.Cooking a meal
C.Watering plants
D.Writing a letter
Related Listening
🔥 Advanced
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