eighteen - Master This Word
Master this word with our 5-step learning method – Learn English in English
eighteen Word Meanings
- The number following seventeen.
- A quantity of 18.
- A representation of the age of adulthood in many cultures.
eighteen Example Sentences
Example sentences are the start of understanding. Don't rush to memorize. First feel how the word works in a sentence.
eighteen Phonetic & Pronunciation
UK
/eɪˈtiːn/
US
/eɪˈtin/
eighteen Word Etymology
eighteen = eight (8) + teen (ten) → Old English 'eahtatene' → English. Imagine a tall teenager, standing proudly, symbolizing the age of adulthood at eighteen.
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 tap the clock and move the page until the number eighteen glows on the screen. The counter lands on eighteen, the count nudging forward with a small shift in the day. I feel focused and a touch of relief, like I’m steering a task toward the next phase with careful hands. In everyday moments—tickets, birthdays, games—I let eighteen show up and adjust my pace to fit the moment.
Real Context
Eighteen is a cardinal number that comes after seventeen and before nineteen. It denotes a quantity of 18, for example eighteen apples. In many cultures, eighteen is the age at which a person is legally considered an adult, allowed to vote in national elections, join the military, or sign contracts in some places. The word is formed from eight plus teen, reflecting the old idea of ten plus eight, even though modern English uses a distinct form. When learning English, remember that eighteen uses the standard -teen ending, not a modifier like eighteen-year-old unless you describe age. In math, eighteen is even and divisible by two and nine.
Usage Reminders
- Remember to pronounce the 'gh' as silent.
- Use turn + age when talking about becoming older.
- Eighteen is even; you can check by dividing by 2.
- Distinguish eighteen from eighty in listening/reading.
- Use eighteen years old with a person, not just eighteen.
- When writing years, 2018 can be read as twenty-eighteen, not twenty-eighteen years.
Common Misconceptions
- Eighteen is just eight plus ten stuck together.
- Eighteen and eighty sound similar, leading to listening confusions.
- Mistaking eighteen as an age only for certain years in some countries.
- Confusing the ordinal eighteenth with the cardinal eighteen.
- Thinking eighteen is the same as 'eighteen hundred' in dates.
Thinking Differences
Learners often picture age as a moment of crossing a boundary, so they say 'I become eighteen' or mix up 'eighteen' with other ages. Emphasize the feeling of crossing into adulthood with 'turn' or 'become'.
Learning Tips
- Practice the pronunciation and stress on the second syllable.
- Pair eighteen with nouns: eighteen years old, eighteen apples.
- Notice the -teen ending; don’t confuse with eighty.
- Use turn + age to talk about growing older.
- Compare eighteen with other teen numbers to build pattern awareness.
- Read and listen to age-related contexts (voting, driving, contracts).
5-Step Learning Method - Learn English in English
Step 1: Meaning
What is the meaning of the word 'eighteen'?
A.The number between seventeen and nineteen
B.The color of the sky
C.A type of fruit
D.A piece of clothing
Step 2: Usage
In which sentence is 'eighteen' used correctly?
A.She bought eighteen pieces of bread.
B.I saw a green eighteen flying in the sky.
C.The cat climbed up the eighteen tree.
D.He won a race when he was eighteen.
Step 3: Similar Words
Which of the following is a synonym for 'eighteen'?
A.Fifteen
B.Seventeen
C.Twenty
D.Eight
Step 4: Opposite Words
Which of the following is an antonym for 'eighteen'?
A.Thirty
B.Nineteen
C.Sixteen
D.Twenty
Step 5: Mastery
How does the word 'eighteen' apply in real-world situations?
A.It signifies the first day of the week.
B.It is commonly used to describe the color blue.
C.It represents the legal voting age in many countries.
D.It symbolizes good luck.
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