amplifier
gb/ˈæmpləfˌaɪɚ/ us/ˈæmpləfˌaɪɚ/
B2
英语
义项
0 个义项
名词
B2
entity
1
device that makes sound louder
a machine that makes sound louder
用法模式：
an amplifier (for) [speakers/headphones/instrument]
常见错误：
Learners sometimes confuse an amplifier (which boosts the signal) with a loudspeaker (which produces the sound).
近义词
amp (Informal short form, common in music and audio.)
反义词
attenuator (A device that reduces signal level rather than increasing it.)
搭配
audio amplifier
|stereo amplifier
|guitar amplifier
|bass amplifier
|headphone amplifier
|integrated amplifier
|tube amplifier
|solid-state amplifier
|turn up the amplifier
|plug into an amplifier
主题
technology
|music
|electronics
例句
- He connected the turntable to the amplifier and then to the speakers.
- The guitarist turned the amplifier up until the room shook.
- This headphone amplifier gives cleaner sound at higher volumes.
学习者例句
- The amplifier makes the music louder.
- I need an amplifier for these speakers.
名词
technical
C1
entity
2
circuit that boosts a signal
an electronic part that makes a signal stronger
用法模式：
an amplifier for [signal/frequency/band]
常见错误：
In technical contexts, an amplifier strengthens an existing signal; it does not create a new signal from nothing.
近义词
signal booster (Common in everyday tech talk, often for wireless or TV signals.)
反义词
signal attenuator (A component used to reduce a signal level.)
搭配
signal amplifier
|power amplifier
|voltage amplifier
|current amplifier
|RF amplifier
|low-noise amplifier
|operational amplifier
|amplifier gain
|amplifier circuit
|amplifier stage
主题
technology
|electronics
|engineering
例句
- The receiver uses an amplifier to strengthen the weak radio signal.
- A low-noise amplifier is placed near the antenna to reduce interference.
- The sensor output was too small, so they added an amplifier circuit.
学习者例句
- This amplifier makes the signal stronger.
名词
C1
entity
3
thing that increases an effect
something that makes an effect stronger
用法模式：
[something] is an amplifier of [something]
常见错误：
In this figurative sense, amplifier is usually used with abstract nouns (e.g., stress, conflict), not with physical sound.
近义词
catalyst (Suggests speeding up change or triggering it, not just making it louder/stronger.)
|
intensifier (Emphasizes increased intensity; common in general writing.)
反义词
dampener (Something that reduces intensity or enthusiasm.)
搭配
an amplifier of fear
|an amplifier of conflict
|an amplifier of inequality
|a powerful amplifier
|a major amplifier
|social media as an amplifier
|an amplifier effect
主题
society
|communication
|emotions
例句
- Social media can be an amplifier of both good information and harmful rumors.
- Long-term stress acts as an amplifier of minor health problems.
- The tight deadline became an amplifier for tensions within the team.
学习者例句
- Bad news can be an amplifier of fear.
名词
B2
entity
4
device that boosts a weak signal
a device that makes a weak signal stronger
用法模式：
an amplifier for [TV/Wi‑Fi/cell signal]
常见错误：
People often call these 'amplifiers' even when the product name is 'booster' or 'repeater'.
近义词
booster (More common in consumer products (e.g., Wi‑Fi booster, cell booster).)
|
repeater (Typically re-transmits a signal rather than simply increasing its level.)
反义词
blocker (Something that prevents signals from passing through.)
搭配
TV signal amplifier
|antenna amplifier
|Wi‑Fi amplifier
|cell signal amplifier
|indoor amplifier
|install an amplifier
|need an amplifier
|use an amplifier with an antenna
主题
technology
|daily_life
|telecommunications
例句
- We bought a TV signal amplifier because the reception was poor.
- A small antenna amplifier improved the picture quality immediately.
- In rural areas, a cell-signal amplifier can help you get a stable connection.
学习者例句
- We use an amplifier to get a stronger signal.
语法
词典原形
amplifier
IPA
GB/ˈæmpləfˌaɪɚ/
US/ˈæmpləfˌaɪɚ/
音节与重音
amp - li - fi - er （4 个音节）
Stress on 1st syllable (amp)
词形变化
Noun
- Base: amplifier
- Plural: amplifier, amplifiers
词族
Forms
amplifiers
noun
Core family
amplify
verb B2
amplification
noun C1
Negative and opposite forms
unamplified
adjective
相关表达
audio amplifier
1/ˈɔdioʊ ˈæmpləfˌaɪɚ/
fixed phrase
amplifier for sound signals
an amplifier used for sound
例句
- An audio amplifier sits between the source and the speakers.
- This audio amplifier has separate controls for bass and treble.
- They chose an audio amplifier with enough power for outdoor events.
guitar amplifier
1/ɡɪtˈɑɹ ˈæmpləfˌaɪɚ/
fixed phrase
amp for an electric guitar
an amplifier for an electric guitar
例句
- She plugged her Strat into a guitar amplifier and tested a few chords.
- A small guitar amplifier is enough for practice at home.
- He mic’d the guitar amplifier for the live recording.
integrated amplifier
1/ˈɪntɪɡɹˌeɪtɪd ˈæmpləfˌaɪɚ/
fixed phrase
amp combining preamp and power amp
one unit that does two amplifier jobs
例句
- An integrated amplifier is a simple choice if you don’t want separate components.
- He bought an integrated amplifier with a built-in phono stage.
- The integrated amplifier has enough power for bookshelf speakers.
operational amplifier
1/ˌɑpɚˈeɪʃənəl ˈæmpləfˌaɪɚ/
fixed phrase
technical
high-gain analog circuit component
an electronic part used in many circuits
例句
- The filter is built around an operational amplifier with feedback resistors.
- An operational amplifier can be configured as a buffer to prevent signal loss.
- She learned the basics of operational amplifiers in her first electronics class.
power amplifier
1/pˈaʊɚ ˈæmpləfˌaɪɚ/
fixed phrase
technical
amplifier that drives speakers
an amplifier that gives high output power
例句
- The system uses a separate power amplifier for the main speakers.
- In a transmitter, the power amplifier boosts the signal before it reaches the antenna.
- They replaced the power amplifier after it started overheating.
signal amplifier
1/sˈɪɡnəl ˈæmpləfˌaɪɚ/
fixed phrase
device that strengthens a signal
a device that makes a signal stronger
例句
- A signal amplifier can help if your antenna cable run is very long.
- They installed a signal amplifier to reduce dropouts in the conference room.
- This signal amplifier is designed for indoor use only.