swear by
phrasal verb·1 sense·particle by
Meanings
Strongly believe in the value or effectiveness of something
Why “by”? BY shows the thing that guides you: a rule, promise, name, or belief.
“He swears by that brand.”
“My aunt swears by ginger tea.”
Don't confuse with
Swear by means strongly believe in the value or effectiveness of something. Swear off means promise yourself you will stop doing or using something.
Test yourself
“He swears by that brand.” What does it mean?
Nearby in the meaning map
Sink In connects verbs by particle pattern, contrast pairs, and shared base verbs.
swear off
A contrast learners often mix up
Promise yourself you will stop doing or using something
abide by
Same by pattern: guide
Accept and follow a rule or decision
go by
Same by pattern: guide
Of time, pass or elapse; Use a rule, name, or evidence as your guide; Use a particular name
live by
Same by pattern: guide
Live according to a rule or principle
stand by
Same by pattern: guide
Wait, ready to act if needed; Stay loyal to what you said or promised; Watch without intervening
swear in
Same base verb: swear
Officially install someone in a position of authority
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