bandwidth
gb/bˈændwɪtθ/ us/bˈændwɪtθ/
B2
英語
~ 5100
語義
0件の語義
名詞
technical
B2
quantity
1
capacity of a network connection
The amount of data that can move through an internet or network connection in one second.
用法パターン：
the bandwidth of [a connection/device/service]
よくある間違い：
Learners sometimes confuse 'bandwidth' with 'speed'. Bandwidth is the capacity (how much data per second), while 'latency' describes how long data takes to travel. In everyday use, people mix them, but technically they are different.
類義語
throughput (More technical; often refers specifically to the actual rate achieved rather than the maximum possible.)
|
data capacity (Informal and less precise; emphasizes how much data a connection can handle rather than the technical rate.)
対義語
low bandwidth (Describes a connection that can only handle a small amount of data per second, the practical opposite of high bandwidth.)
コロケーション
high bandwidth
|low bandwidth
|bandwidth limit
|bandwidth usage
|bandwidth constraints
|increase bandwidth
テーマ
technology
|internet
|communication
例文
- Our office upgraded to a plan with higher bandwidth so video calls are smoother.
- Streaming 4K video uses a lot of bandwidth.
- The conference Wi‑Fi didn’t have enough bandwidth for hundreds of people to connect at once.
- You should run a test to see what bandwidth your internet provider is actually giving you.
- Online games require stable bandwidth, not just a fast advertised speed.
学習者向け例文
- My home internet has enough bandwidth for two people to watch movies.
- Video calls use more bandwidth than email.
- The company pays for extra bandwidth during big online events.
- If many people download files, the bandwidth may not be enough.
- We need more bandwidth to support all the new users.
名詞
informal
C1
quantity
2
time or mental capacity available
The time and mental energy that someone has to do things or think about problems.
用法パターン：
have (enough) bandwidth to [do something]
よくある間違い：
Learners sometimes think this meaning is still technical. In this informal sense, 'bandwidth' is a metaphor for personal time and mental energy, not internet speed or data. It is not used for physical space or money.
類義語
capacity (Very general; can refer to many kinds of ability or space, not just time and attention.)
|
headspace (Informal; focuses more on emotional and mental room rather than time and workload.)
対義語
overload (Describes a state where a person already has too many tasks or too much stress, so they effectively have no bandwidth left.)
コロケーション
have the bandwidth
|not have the bandwidth
|limited bandwidth
|mental bandwidth
|emotional bandwidth
|free up bandwidth
テーマ
work
|daily life
|emotions
|core_vocabulary
例文
- I’d love to help, but I just don’t have the bandwidth this week.
- Our team doesn’t have enough bandwidth to take on another project right now.
- She said she doesn’t have the emotional bandwidth for a serious relationship at the moment.
- Let’s automate these reports to free up some bandwidth for more important work.
- He has a lot on his plate and no mental bandwidth left for side jobs.
学習者向け例文
- Sorry, I don’t have the bandwidth to join another meeting today.
- Our team does not have enough bandwidth for a new project.
- She has no emotional bandwidth to deal with drama right now.
- I want to study Spanish, but I don’t have the bandwidth this year.
- We cut two tasks to create more bandwidth for planning.
名詞
technical
C1
quantity
3
range of frequencies of a signal
The group of frequencies that a signal or device uses or can work with.
用法パターン：
the bandwidth of [a signal/channel/system]
よくある間違い：
Learners may confuse this with data-transfer bandwidth. Both relate to capacity, but in this sense it is specifically the range of frequencies, not the amount of data per second.
類義語
frequency range (More descriptive and slightly less technical; directly states that it refers to a set of frequencies.)
対義語
narrow bandwidth (Refers to a small frequency range, in contrast with a wide bandwidth that covers a larger range of frequencies.)
コロケーション
wide bandwidth
|narrow bandwidth
|frequency bandwidth
|bandwidth allocation
|bandwidth requirements
|signal bandwidth
テーマ
science
|technology
|engineering
例文
- This filter has a very narrow bandwidth centered at 1 kHz.
- The antenna needs enough bandwidth to handle multiple communication channels.
- Audio quality improves when the system has a wider bandwidth.
- Engineers measured the bandwidth of the new radio link in the lab.
- The service cannot operate outside the allocated bandwidth.
学習者向け例文
- The radio uses a certain bandwidth for its signal.
- A wide bandwidth can carry more information in the signal.
- The engineer checked the bandwidth of the new device.
- This filter only lets a small bandwidth of sound go through.
- We must stay inside the allowed bandwidth for this system.
文法
辞書形
bandwidth
IPA
GB/bˈændwɪtθ/
US/bˈændwɪtθ/
音節・強勢
band - width （2音節）
Stress on 1st syllable (band)
活用形
Noun
- Base: bandwidth
- Plural: bandwidth, bandwidths
関連語
表現
emotional bandwidth
1/ɪmˈoʊʃənəl bˈændwɪtθ/
fixed phrase
available emotional energy
The amount of emotional energy someone has free to deal with other people’s feelings or difficult situations.
例文
- I care about you, but I don’t have the emotional bandwidth for that conversation tonight.
- He has very little emotional bandwidth after caring for his sick parents.
- Teachers need emotional bandwidth to support their students effectively.
have the bandwidth
1/hˈæv ðə bˈændwɪtθ/
fixed phrase
informal
have enough time/energy
To have enough time and mental energy to do something.
例文
- I’d love to mentor you, but I don’t have the bandwidth right now.
- Do we actually have the bandwidth to start another project this quarter?
- She finally has the bandwidth to focus on her own health.
mental bandwidth
1/mˈɛntəl bˈændwɪtθ/
fixed phrase
available thinking capacity
The amount of thinking power or attention someone has free for tasks or problems.
例文
- After the long meeting, I had no mental bandwidth left for creative work.
- This course takes a lot of mental bandwidth, so don’t take too many other classes.
- She didn’t have the mental bandwidth to learn a new system during the busy season.
not have the bandwidth
1/nˈɑt hˈæv ðə bˈændwɪtθ/
fixed phrase
informal
lack time or mental capacity
To not have enough time or mental energy to do something.
例文
- I’m sorry, I just don’t have the bandwidth to join another committee.
- We don’t have the bandwidth to support that feature this year.
- He doesn’t have the bandwidth to handle more clients at the moment.