Just knock vs Strike

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

Just knock

Top 2,000 (common)

Strike

Top 1,000 (very common)B2verb
Most common: Strike
 Just knockStrike
Pronunciation🇬🇧 //dʒʌst nɒk//🇺🇸 //dʒʌst nɑk//🇬🇧 /["/straɪk/","/straɪks/","/strʌk/","/ˈstraɪkɪŋ/"]/🇺🇸 /["/straɪk/","/straɪks/","/strʌk/","/ˈstraɪkɪŋ/"]/
MeaningSimply hit a door lightly with your hand.to hit something or to stop working as a protest
ExamplePlease just knock before entering my room.The workers decided to strike for better wages and working conditions.
RegisterNeutralNeutral
How commonTop 2,000 (common)Top 1,000 (very common)
CEFR level-B2
Part of speechverb
Collocationsjust knock once, just knock lightly, just knock politelyfirmly, hard, deep, be about to, be going to, be ready to, against, at, on, be struck by lightning, get struck by lightning, be struck down by something, firmly, hard, deep, be about to, be going to, be ready to, against, at, on, be struck by lightning, get struck by lightning, be struck down by something, firmly, hard, deep, be about to, be going to, be ready to, against, at, on, be struck by lightning, get struck by lightning, be struck down by something, immediately, suddenly, just, as, immediately, suddenly, just, as, threaten to, vote to, be set to, against, for, in protest at, the right to strike, firmly, hard, deep, be about to, be going to, be ready to, against, at, on, be struck by lightning, get struck by lightning, be struck down by something
Antonyms-surrender, accept
Common mistakesConfused with 'just knock it off' which means to stop doing something., Using 'knock' without 'just' in contexts where emphasis is needed., Assuming it can only be used as a command, ignoring its friendly tone.Confused with 'struck' as past tense, Using 'strike' for non-physical hits like arguments, Saying 'the worker strike' instead of 'the workers' strike'
Usage notesUsed when telling someone to tap on a door to get attention. Appropriate in most settings.Use 'strike' when talking about hitting something or when workers stop working to demand change. It's neutral in tone, fitting for both formal and casual situations. Avoid in overly technical discussions about labor laws.

See it in real clips

Just knock
Strike

Frequently asked questions: Just knock vs Strike

What's the difference between Just knock and Strike?

Just knock: Simply hit a door lightly with your hand. Strike: to hit something or to stop working as a protest

Which is more common: Just knock and Strike?

Strike is the most common in everyday English.

Can you show an example of each?

Just knock: Please just knock before entering my room. Strike: The workers decided to strike for better wages and working conditions.

Can I use Just knock and Strike interchangeably?

Not always. Just knock and Strike 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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