sphere
gb/sfˈɪɹ/ us/sfˈɪɹ/
B1
Angličtina
~ 9500
Významy
0 významů
Podstatné jméno
B1
entity
1
perfectly round 3D shape
A solid round shape like a perfect ball, the same in every direction.
Vzorec užití:
a sphere of [material]
Častá chyba:
Learners sometimes confuse 'sphere' with 'circle'. A circle is a flat, two-dimensional shape, while a sphere is three-dimensional, like a ball.
Synonyma
ball (Everyday word for a roughly spherical object; not always a mathematically perfect shape.)
|
globe (Usually refers to a spherical model of the Earth rather than any sphere.)
Antonyma
cube (A contrasting basic 3D shape with flat faces and sharp edges instead of a smooth round surface.)
Kolokace
perfect sphere
|solid sphere
|three-dimensional sphere
|glass sphere
|metal sphere
|sphere with a radius of [number]
Témata
math
|science
|core_vocabulary
Příklady
- The artist placed a glass sphere in the center of the installation.
- In geometry class, we learned how to calculate the volume of a sphere.
- The water droplets formed tiny spheres on the surface of the leaf.
- Earth is not a perfect sphere; it is slightly flattened at the poles.
- The sculpture is made from a solid steel sphere balanced on a thin rod.
Učební příklady
- The child rolled a small metal sphere across the table.
- A basketball is shaped like a sphere.
- He drew a big sphere on the paper.
- The planet looks like a blue sphere from space.
- We used a plastic sphere in our science class.
Podstatné jméno
formal
B2
entity
2
field or domain of activity
A general area of work, interest, or power, such as business, politics, or family life.
Vzorec užití:
the sphere of [activity/interest]
Častá chyba:
Learners sometimes use 'sphere' where 'world' or 'field' sounds more natural in everyday speech. In casual conversation, 'in the world of politics' or 'in the field of medicine' is often more common than 'in the political sphere' or 'in the medical sphere'.
Synonyma
field (Very common and slightly less formal; often used for work or study areas.)
|
domain (More technical or formal; often used in academic or specialized contexts.)
Antonyma
outside (Refers to what is not included within a particular sphere of activity or influence.)
Kolokace
sphere of influence
|in the political sphere
|in the public sphere
|in the private sphere
|in the business sphere
|in the cultural sphere
Témata
society
|politics
|work
|business
|core_vocabulary
Příklady
- The company is trying to expand its activities into the healthcare sphere.
- Climate change has become a major topic in the political sphere.
- Her research lies in the sphere of artificial intelligence ethics.
- Parents worry about how social media affects the private sphere of family life.
- The agreement increased the small country's sphere of influence in the region.
Učební příklady
- He works in the business sphere.
- Many new laws affect the public sphere.
- The internet changed the sphere of education.
- They want to grow their sphere of influence in Africa.
- She is famous in the cultural sphere of the city.
Podstatné jméno
formal
C1
entity
3
social class or environment
The social group or level of society where a person usually lives, works, and has friends.
Vzorec užití:
in [someone]'s social sphere
Častá chyba:
This sense is often confused with the more general 'field of activity' sense. When talking about social class or typical friends and contacts, 'social sphere', 'sphere of society', or 'sphere of life' is more appropriate than 'field'.
Synonyma
social circle (Focuses more on a person's friends and contacts than on social status as a whole.)
|
milieu (Formal and literary; emphasizes the surrounding social and cultural environment.)
Antonyma
outsider (Someone who does not belong to a particular social sphere or group.)
Kolokace
social sphere
|same sphere
|higher sphere
|outside her sphere
|within his sphere
Témata
society
|relationships
|core_vocabulary
Příklady
- He married someone from a very different social sphere.
- After the promotion, she moved into a higher sphere of society.
- Artists and bankers rarely mixed in the same social sphere at that time.
- The writer described the closed sphere of the city’s elite families.
- Traveling abroad opened his eyes to spheres of life he had never imagined.
Učební příklady
- They come from different social spheres.
- She felt he was outside her sphere of friends.
- With his new job, he entered a new social sphere.
- People in that sphere of society have a lot of money.
- The two groups lived in separate spheres.
Podstatné jméno
technical
C1
entity
4
imaginary sphere of the sky
In astronomy, an imaginary round shell around Earth or an observer, where the stars and planets seem to be placed.
Vzorec užití:
the celestial sphere around [planet/observer]
Synonyma
firmament (Literary or old-fashioned term for the sky or heavens rather than a technical geometric model.)
Antonyma
earth (Contrasts the sky or heavenly spheres with the ground or human world below.)
Kolokace
celestial sphere
|heavenly spheres
|music of the spheres
|outer spheres
|crystal spheres
Témata
science
|space
Příklady
- The celestial sphere is a useful model for mapping the positions of stars.
- Ancient astronomers imagined the planets fixed to transparent spheres surrounding the Earth.
- In medieval cosmology, the music of the spheres was thought to reflect perfect cosmic order.
Učební příklady
- In old models, the stars were on a large sphere around Earth.
- Astronomy students learn to picture the sky as a big sphere.
- The idea of crystal spheres is no longer used in science.
- The celestial sphere helps people describe where stars are in the sky.
Gramatika
Slovníkový tvar
sphere
IPA
GB/sfˈɪɹ/
US/sfˈɪɹ/
Slabiky a přízvuk
sphere (1 slabika)
Stress on 1st syllable (sphere)
Tvary slova
Noun
- Base: sphere
- Plural: spheres
Příbuzná slova
Forms
spheres
noun
Core family
spherical
adjective
Related words
hemisphere
noun B2
Advanced or less common
spherically
adverb
Výrazy
in the business sphere
1/ˈɪn ðə bˈɪznɪs sfˈɪɹ/
fixed phrase
formal
within business life
In the world of companies and commercial activity.
Příklady
- He is well known in the business sphere for his work on start-ups.
- Digital technology has transformed competition in the business sphere.
- More women are entering the business sphere at higher levels.
in the political sphere
1/ˈɪn ðə pəlˈɪtɪkəl sfˈɪɹ/
fixed phrase
formal
within politics and government
In the world of politics and government activity.
Příklady
- Climate change has become a central issue in the political sphere.
- She is one of the youngest leaders in the political sphere.
- Many activists later move from the social sphere into the political sphere.
in the private sphere
1/ˈɪn ðə pɹˈaɪvɪt sfˈɪɹ/
fixed phrase
formal
in personal life and home
In the part of life that is personal, such as home and family, not open to the public.
Příklady
- Some problems should be solved in the private sphere, not by the government.
- The law affects both behavior at work and in the private sphere.
- Violence in the private sphere is now taken more seriously by the courts.
in the public sphere
1/ˈɪn ðə pˈʌblɪk sfˈɪɹ/
fixed phrase
formal
in public life or debate
In the part of life that is open to everyone, such as politics, media, and public debate.
Příklady
- The issue of online privacy is widely discussed in the public sphere.
- More women are taking leading roles in the public sphere.
- He prefers to stay out of the public sphere and focus on his family.
sphere of influence
1/sfˈɪɹ əv ˈɪnfluəns/
fixed phrase
formal
area where someone has power
The area, group, or activity where a person, organization, or country has strong power or control.
Příklady
- The treaty reduced the empire's sphere of influence in the region.
- Major powers often compete for a greater sphere of influence in global affairs.
- Her work has expanded the organization’s sphere of influence in education.