infinity
gb/ɪnfˈɪnɪti/ us/ɪnfˈɪnɪti/
B2
Anh
~ 9800
Các nghĩa
0 nghĩa
Danh từ
B2
state
1
limitless extent or endlessness
A state where something has no end or limit in space, time, or amount.
Mẫu sử dụng:
the infinity of [space/time/possibilities]; to [infinity]
Lỗi thường gặp:
Learners often confuse "infinite" (adjective) with "infinity" (noun). We say "an infinite number of stars" (adjective + noun) but "the infinity of space" (noun). Also, "infinity" is usually uncountable, so we normally do not say *"infinities"* in everyday language, even though it exists in advanced mathematical contexts.
Từ đồng nghĩa
endlessness (Focuses on having no end, especially in time, without emphasizing size or amount.)
|
limitlessness (Stresses the absence of any limits or boundaries, often in a more abstract way.)
Từ trái nghĩa
finiteness (Highlights that something has fixed limits or an end, the opposite of being without limits.)
|
limit (A specific point or boundary where something stops, contrasting with having no boundary.)
Cụm từ đi kèm
the infinity of space
|stretch into infinity
|seem like infinity
|to infinity
|into infinity
|an infinity of stars
Chủ đề
science
|philosophy
|mathematics
|core_vocabulary
|time
|space
Ví dụ
- The idea of the infinity of space is hard to truly imagine.
- As a child, she would lie on the grass and think about the infinity of the night sky.
- Their love felt as if it would last for infinity.
- To the bored students, the lecture seemed to go on for infinity.
- An infinity of possibilities opened up once the internet became widely available.
Ví dụ cho người học
- The infinity of space is difficult for me to understand.
- He said he would love her for infinity.
- To me, the wait felt like infinity.
- Scientists talk about the infinity of the universe.
- There seemed to be an infinity of choices on the menu.
Danh từ
technical
C1
quantity
2
mathematical unbounded value
In math, a special idea for a value that is larger than every normal number or keeps growing without end.
Mẫu sử dụng:
[function] tends to infinity; [value] approaches infinity
Lỗi thường gặp:
Learners may treat infinity as a normal number, saying things like *"divide by infinity to get zero"* as if infinity were a regular value, when in most mathematical systems it is a special concept, not an ordinary real number. They may also confuse "infinity" with "very big"; in math, infinity is not just a large number but something without any upper bound.
Từ đồng nghĩa
unbounded value (Technical phrase that focuses on the idea of having no upper limit, common in mathematics and physics.)
|
divergent value (Used in specific mathematical contexts where a series or function does not settle on a limit and grows without bound.)
Từ trái nghĩa
finite number (Any specific, limited number, which contrasts with the unbounded nature of infinity.)
|
bounded value (A value that stays within some fixed limits, opposite to a value that goes to infinity.)
Cụm từ đi kèm
approach infinity
|tend to infinity
|goes to infinity
|plus infinity
|minus infinity
|countable infinity
Chủ đề
mathematics
|science
|education
Ví dụ
- As x approaches zero, the function tends to infinity.
- In calculus, certain integrals diverge to infinity instead of giving a finite answer.
- The series does not converge; instead, its partial sums grow without bound and head toward infinity.
- On the graph, the curve rises sharply and seems to shoot off to infinity.
- Some types of infinity in set theory are larger than others, such as the uncountable infinity of real numbers.
Ví dụ cho người học
- In this graph, the line goes up to infinity.
- The teacher said the limit is infinity when x goes to zero.
- Some series in math grow to infinity and never stop.
- A finite number is small compared to infinity.
- In set theory, they compare different kinds of infinity.
Danh từ
B2
entity
3
the symbol ∞ for infinity
The sign ∞ that shows the idea of infinity or no end.
Mẫu sử dụng:
the infinity symbol on [something]; draw an infinity symbol
Lỗi thường gặp:
Learners sometimes confuse the word "infinity" (the idea) with the phrase "infinity symbol" (the sign ∞). In writing, use "infinity" for the concept and "infinity symbol" when you mean the shape or character itself.
Từ đồng nghĩa
infinity symbol (The standard term specifically naming the visual sign ∞ rather than the abstract idea.)
Từ trái nghĩa
zero (Represents the absence of quantity, conceptually contrasting with the idea of endless quantity shown by the infinity symbol.)
Cụm từ đi kèm
infinity symbol
|infinity sign
|draw an infinity symbol
|wear an infinity symbol necklace
|infinity tattoo
|the shape of an infinity symbol
Chủ đề
mathematics
|design
|popular_culture
|science
|communication
Ví dụ
- She has a small infinity symbol tattooed on her wrist.
- In this equation, the infinity symbol means the value grows without limit.
- The jewelry store sells simple silver rings shaped like an infinity symbol.
- Designers often use the infinity symbol to suggest something eternal or unbroken.
- He drew an infinity symbol next to their initials in his notebook.
Ví dụ cho người học
- He drew an infinity symbol on the paper.
- The math book uses the infinity symbol in this formula.
- She wears a necklace with an infinity symbol.
- The logo has the shape of an infinity symbol.
- I see the infinity symbol on many tattoos.
Ngữ pháp
Dạng từ điển
infinity
IPA
GB/ɪnfˈɪnɪti/
US/ɪnfˈɪnɪti/
Âm tiết và trọng âm
in - fin - ity (3 âm tiết)
Stress on 2nd syllable (fin)
Các dạng từ
Noun
- Base: infinity
- Plural: infinities, infinity
Họ từ
Forms
infinities
noun
Core family
infinite
adjective B2
infinitely
adverb B2
Negative and opposite forms
finite
adjective B2
Cách diễn đạt
to infinity
1/tə ɪnfˈɪnɪti/
fixed phrase
continue or increase without limit
Used after a verb to show that something continues, repeats, or increases without any end or limit.
Ví dụ
- The pattern repeats to infinity in both directions.
- In theory, you could keep adding numbers to this list to infinity.
- The line on the graph goes up to infinity as x gets larger.
to infinity and beyond
1/tə ɪnfˈɪnɪti ˈænd bɪjˈɔnd/
idiom
informal
go or continue forever and more
Used in a playful or dramatic way to mean going or continuing forever, and even more than that.
Ví dụ
- The team’s slogan was "To infinity and beyond" to show their big dreams.
- He raised his glass and joked, "To infinity and beyond!" before they started the project.
- Kids still shout "To infinity and beyond!" when they pretend to be space heroes.