kilometer - Master This Word
Master this word with our 5-step learning method – Learn English in English
kilometer Word Meanings
- A metric unit of length equal to 1000 meters.
- A distance measured in kilometers, used to describe how far something is or how far you travel.
- Figurative: can denote a large extent or scope in some contexts, not limited to physical distance.
kilometer Example Sentences
Example sentences are the start of understanding. Don't rush to memorize. First feel how the word works in a sentence.
kilometer Phonetic & Pronunciation
UK
/kɪˈlɒmɪtə/
US
/kɪˈlɑːmɪtər/
kilometer Word Etymology
(a) Root decomposition: kilo- prefix meaning thousand + meter meaning length. (b) Historical origin: from Greek χίλιοι 'khílioi' meaning thousand and μέτρον 'metron' meaning measure; via Latin metrum and Old French metre into English in the 19th century. (c) Memory image: a giant measuring rod one kilometer long, unfurling across a landscape, with each meter marked and a highlighted thousand-mark.
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
Kilometer is the standard metric unit for measuring length in most of the world. One kilometer equals 1000 meters, and you can describe distances with kilometers when talking about travel by car, train, or plane. In everyday English we use kilometers for mid to long distances, while shorter distances are often described in meters. The word comes from kilo- meaning thousand and meter meaning length, and it entered English in the 19th century as metric systems spread. A useful mental image is a long measuring rod marked every meter up to a thousand; picturing that scale helps connect numbers to real distances and makes statements about travel more precise.
Usage Reminders
- - Use kilometers for distances between places, not miles or feet.
- - 1 kilometer = 1000 meters; keep the decimal mindset simple.
- - When giving speed, use km/h rather than miles per hour in metric contexts.
- - Reserve meters for very short distances (inside rooms, steps).
- - On maps, distances are usually labeled in kilometers.
Common Misconceptions
- Kilometer is a US unit; assume it is rarely used elsewhere.
- Meters are always used for long distances.
- Kilometer and kilometer per hour are the same concept.
- 0 kilometers means no distance traveled in all contexts.
- Miles and kilometers can be used interchangeably without conversion.
Thinking Differences
In English, distance is commonly described with a decimal scale and tends to separate meters for small measures from kilometers for longer ones. Learners often translate directly from their language’s basic distance terms, causing mix-ups between meters and kilometers or between metric and imperial units.
Learning Tips
- Visualize a kilometer as a long ruler that marks every meter up to 1000.
- Practice converting meters to kilometers: move the decimal point three places left.
- Compare distances on a real map to reinforce scale (km vs mph).
- Use km/h when talking about speed, not mph in metric contexts.
- Note common collocations: 'a distance of 5 kilometers', 'drive 10 kilometers'
- Listen for native usage in travel videos or route guides to hear natural phrasing.
5-Step Learning Method - Learn English in English
Step 1: Meaning
What does the word 'kilometer' mean?
A.A type of vehicle
B.A unit of measurement for distance in the metric system
C.A disease affecting the heart
D.A kind of food
Step 2: Usage
Which sentence uses 'kilometer' correctly?
A.The marathon was about 42 kilometers long.
B.I went to the store in two kilometers.
C.He ran faster than a kilometer.
D.She baked a kilometer of cookies.
Step 3: Similar Words
Which word is most similar to 'kilometer'?
A.Yard
B.Foot
C.Meter
D.Inch
Step 4: Opposite Words
What is the opposite of 'kilometer'?
A.Mile
B.Centimeter
C.Decimeter
D.Meter
Step 5: Mastery
Can you think of a real-life scenario related to distance?
A.A family is planning a road trip that will cover 300 miles.
B.The distance to the nearest store is less than 10 kilometers.
C.He ran a distance that took him a day to complete.
D.My friend lives three houses down.
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