Be quiet vs Shut up now vs Silence

When to use each in English, with meaning, register, and examples.

Be quiet

Top 2,000 (common)

Shut up now

InformalTop 5,000 (fairly common)

Silence

Top 1,000 (very common)B2noun
Most common: Silence
 Be quietShut up nowSilence
Pronunciation🇬🇧 //biː ˈkwaɪət//🇺🇸 //bi ˈkwaɪət//🇬🇧 //ʃʌt ʌp naʊ//🇺🇸 //ʃʌt ʌp naʊ//🇬🇧 /["/ˈsaɪləns/"]/🇺🇸 /["/ˈsaɪləns/"]/
MeaningStop making noise.Stop talkingThe absence of sound or noise.
ExampleThe teacher told the students to **be quiet** during the test.During the argument, she suddenly yelled, 'Shut up now!' to make her point clear.After the loud concert, there was a beautiful silence that enveloped the room.
RegisterNeutralInformalNeutral
How commonTop 2,000 (common)Top 5,000 (fairly common)Top 1,000 (very common)
CEFR level--B2
Part of speechnoun
Collocationsbe quiet in class, ask someone to be quiet, tell someone to be quietjust shut up now, please shut up now, shut up now and listen, always shut up now, shut up now, pleaselengthy, long, prolonged, moment, maintain, break, interrupt, come over something, descend, fall, in (the) silence, two minutes’ silence, three minutes’ silence, lengthy, long, prolonged, moment, maintain, break, interrupt, come over something, descend, fall, in (the) silence, two minutes’ silence, three minutes’ silence, deafening, dignified, deliberate, keep, maintain, take as, surround, silence from, a conspiracy of silence, a wall of silence, a vow of silence
Antonymsmake noise, speak loudly-noise, sound, clamor
Common mistakesUsing 'be quiet' in a friendly context without softening the request., Incorrectly saying 'be quieted'., Confusing with 'be silent', which feels more formal.Using it in formal situations, where it's inappropriate, Thinking it’s a polite way to ask someone to be quiet, Confusing with 'be quiet' which is softerConfusing 'silence' with 'silently' - they have different grammatical uses., Using 'silence' as a verb incorrectly in informal contexts., Misunderstanding the emotional connotation of silence in social situations.
Usage notesUse 'be quiet' when asking someone to lower their voice. It's appropriate in both formal and informal contexts but can sound rude if used abruptly.Use 'shut up now' to tell someone to be quiet immediately. It's very direct and can be rude, so use in casual settings only.Use 'silence' when referring to a lack of noise. Appropriate in most contexts, but be cautious in formal situations where you might need to clarify its significance.

See it in real clips

Be quiet
Shut up now
Silence

Frequently asked questions: Be quiet vs Shut up now vs Silence

What's the difference between Be quiet, Shut up now, and Silence?

Be quiet: Stop making noise. Shut up now: Stop talking Silence: The absence of sound or noise.

Which is more common: Be quiet, Shut up now, and Silence?

Silence is the most common in everyday English.

Can you show an example of each?

Be quiet: The teacher told the students to **be quiet** during the test. Shut up now: During the argument, she suddenly yelled, 'Shut up now!' to make her point clear. Silence: After the loud concert, there was a beautiful silence that enveloped the room.

Can I use Be quiet, Shut up now, and Silence interchangeably?

Not always. Be quiet, Shut up now, and Silence are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.

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