knock out
phrasal verb·1 sense·particle out
Meanings
Hit someone unconscious
Why “out”? Going outward until nothing remains. Supply is gone.
“He knocked his opponent out.”
“The punch knocked the fighter out.”
Don't confuse with
Knock out means hit someone so they cannot stay awake. Knock in means hit something so it goes into a surface.
Test yourself
“He knocked his opponent out.” What does it mean?
Nearby in the meaning map
Sink In connects verbs by particle pattern, contrast pairs, and shared base verbs.
knock in
A contrast learners often mix up
Hit something so it goes into a surface
black out
Same out pattern: exhaustion
Lose consciousness briefly
blank out
Same out pattern: exhaustion
Suddenly fail to remember or think of something
blow out
Same out pattern: exhaustion
Extinguish a flame by blowing
burn out
Same out pattern: exhaustion
Become exhausted from overwork; (of a fire) stop burning because there is no fuel left; (of an electrical device) stop working because of overheating; Destroy a building or vehicle by fire
chill out
Same out pattern: exhaustion
Relax and stop being anxious
close out
Same out pattern: exhaustion
End or settle a process or account
conk out
Same out pattern: exhaustion
Stop working suddenly, especially of an engine or machine
Practice “knock out” in Sink In
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