horizon
gb/hɚˈaɪzən/ us/hɚˈaɪzən/
B1
English
~ 7600
Senses
0 senses
Noun
B1
entity
1
apparent line between earth and sky
The line far away where the land or sea and the sky seem to touch.
Usage pattern:
the [adjective] horizon
Common mistake:
Learners sometimes use *horizon* to mean "view" or "scene" in general, saying things like *The horizon is very beautiful in this city* when they really mean *The view is very beautiful*. Use *horizon* specifically for the line where the land or sea meets the sky.
Synonyms
skyline (Usually refers to the outline of buildings or mountains against the sky, especially in a city, not just the earth–sky line in general.)
Antonyms
zenith (In astronomy, the point in the sky directly above you, conceptually opposite to the low, distant line of the horizon.)
Collocations
on the horizon
|the distant horizon
|scan the horizon
|disappear over the horizon
|sink below the horizon
|sea horizon
Themes
nature
|travel
|space
Examples
- A small boat appeared on the horizon as the sun began to set.
- From the top of the hill we could see the mountains rising above the flat horizon.
- Storm clouds were building on the horizon, darkening the late-afternoon sky.
- The city lights glowed faintly on the horizon to the east.
- As the ship sailed away, it slowly vanished beyond the horizon.
Learner examples
- The sun was low on the horizon.
- We watched a large ship on the horizon.
- Mountains stood high above the flat horizon.
- Dark clouds moved in along the horizon.
- A red glow filled the horizon at sunrise.
unknown
B2
entity
2
limits of knowledge or experience
The amount or range of things a person knows about or has experience with.
Usage pattern:
to broaden/expand [someone’s] horizons
Common mistake:
Learners sometimes forget that this sense is almost always used in the plural (*horizons*), especially after verbs like *broaden* or *expand*. It is unnatural to say *broaden your horizon* in this meaning; say *broaden your horizons* instead.
Synonyms
outlook (Focuses more on a person’s general way of thinking or attitude, while *horizons* emphasizes the range and variety of their experiences or interests.)
Antonyms
narrow-mindedness (Describes a refusal to accept or consider different ideas or experiences, the opposite of having wide or broad horizons.)
Collocations
broaden your horizons
|expand her horizons
|open up new horizons
|intellectual horizons
|cultural horizons
|limited horizons
Themes
personal_growth
|education
|work
|core_vocabulary
Examples
- Traveling alone for a year really broadened his horizons.
- Studying art history opened up new horizons for her career.
- Reading widely can expand your horizons far beyond your daily life.
- The program aims to widen students’ horizons beyond their local community.
- Working with an international team completely changed his horizons.
Learner examples
- Living in another country can broaden your horizons.
- This class will open new horizons for you.
- Reading books in English expands my horizons.
- Meeting new people has widened her horizons.
- The internet gives us very wide horizons.
Noun
C1
entity
3
future period used for planning
A set period in the future, such as five or ten years, that you think about when you plan or invest.
Usage pattern:
a [length]-year horizon
Common mistake:
Learners sometimes confuse *horizon* with *deadline*. A *deadline* is the exact final date when something must be finished, while a *horizon* is the whole period you think about when planning, not a single day.
Synonyms
timeframe (A general word for the period during which something happens; *horizon* is more often used in strategic, financial, or policy contexts.)
Antonyms
instant (Refers to a single moment rather than an extended future period considered for planning.)
Collocations
time horizon
|investment horizon
|planning horizon
|over a five-year horizon
|long-term horizon
|short-term horizon
Themes
business
|economics
|planning
|time
Examples
- For most young investors, a thirty-year time horizon is quite realistic.
- We need to decide on the planning horizon before setting our targets.
- The project has a relatively short investment horizon of three to five years.
- On a ten-year horizon, the company expects steady but moderate growth.
- Climate policy must be designed with a very long horizon in mind.
Learner examples
- They made a business plan with a five-year horizon.
- Your investment horizon should match your goals.
- With a long time horizon, you can take more risk.
- We chose a short horizon for this project.
- On a three-year horizon, costs will go down.
Noun
technical
C2
entity
4
distinct layer in soil profile
One of the layers of soil or rock under the ground that looks or behaves differently from the other layers.
Usage pattern:
the [letter] horizon
Synonyms
layer (A very general word for one thickness of material; *horizon* is a technical term for a natural soil or rock layer with specific properties.)
Antonyms
mass (Suggests a large, undivided body of material without clear layers, the opposite of clearly separated horizons.)
Collocations
soil horizon
|upper horizon
|B horizon
|organic horizon
|surface horizon
|subsoil horizon
Themes
science
|geography
|environment
|nature
Examples
- The dark A horizon is rich in organic matter and supports most plant roots.
- In this region the B horizon contains a high concentration of clay.
- Soil scientists described four distinct horizons in the profile.
- The organic horizon was very thin due to frequent forest fires.
- Calcium deposits were found mainly in the lower horizons of the soil.
Learner examples
- The top horizon of the soil is dark and rich.
- Below the A horizon there is the B horizon.
- Each soil horizon has different materials.
- Scientists study soil horizons to understand the land.
- Tree roots are mostly in the upper horizons.
Grammar
Dictionary form
horizon
IPA
GB/hɚˈaɪzən/
US/hɚˈaɪzən/
Syllables & stress
ho - ri - zon (3 syllables)
Stress on 1st syllable (ho)
Word forms
Noun
- Base: horizon
- Plural: horizons
Word family
Forms
horizons
noun
Core family
horizontal
adjective B1
horizontally
adverb
Expressions
beyond the horizon
1/bɪjˈɔnd ðə hɚˈaɪzən/
idiom
literary
in a distant or unknown future
In a future time or place that you cannot see or know yet.
Examples
- No one knows what lies beyond the horizon for our planet.
- For now the technology is still beyond the horizon, but researchers are hopeful.
- He dreamed of adventures somewhere far beyond the horizon.
broaden someone's horizons
1/bɹˈɔdən sˈʌmwˌʌnz hɚˈaɪzənz/
idiom
increase someone’s experience or knowledge
To help someone learn about or experience more things, so they are not limited in what they know or do.
Examples
- Living abroad for a year really broadened her horizons.
- The course is designed to broaden students’ horizons beyond their main subject.
- Reading books from other cultures can broaden your horizons.
expand someone's horizons
1/ɪkspˈænd sˈʌmwˌʌnz hɚˈaɪzənz/
idiom
make someone’s horizons wider
To make someone’s world bigger by giving them new ideas or experiences.
Examples
- Travel can expand your horizons in unexpected ways.
- The internet has expanded our horizons enormously.
- Volunteering with refugees expanded his horizons and changed his views.
new horizons
1/njˈu hɚˈaɪzənz/
idiom
new areas of possibility
New areas of life, work, or learning that you have not tried before.
Examples
- Retirement opened up new horizons for her creativity.
- The discovery could lead scientists to new horizons in medicine.
- Learning to code has given him new horizons in his career.
on the horizon
1/ˈɔn ðə hɚˈaɪzən/
idiom
likely to happen soon
Going to happen or appear soon, but not yet here.
Examples
- With several new projects on the horizon, the company feels optimistic.
- There are major political changes on the horizon.
- A new vaccine may be on the horizon if the trials succeed.