The difference between Dummy and Pacifier
When used as nouns, dummy means a silent person, whereas pacifier means someone or something that pacifies.
Dummy is also verb with the meaning: to make a mock-up or prototype version of something, without some or all off its intended functionality.
check bellow for the other definitions of Dummy and Pacifier
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Dummy as a noun:
A silent person; a person who does not talk.
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Dummy as a noun:
An unintelligent person.
Examples:
"Don't be such a dummy!"
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Dummy as a noun:
A figure of a person or animal used by a ventriloquist; a puppet.
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Dummy as a noun:
Something constructed with the size and form of a human, to be used in place of a person.
Examples:
"To understand the effects of the accident, we dropped a dummy from the rooftop."
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Dummy as a noun:
A person who is the mere tool of another; a man of straw.
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Dummy as a noun:
A deliberately nonfunctional device or tool used in place of a functional one.
Examples:
"The hammer and drill in the display are dummies."
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Dummy as a noun (AU, UK, NZ):
A "dummy teat"; a plastic or rubber teat used to soothe or comfort a baby; a pacifier.
Examples:
"The baby wants her dummy."
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Dummy as a noun (card games, chiefly, bridge):
A player whose hand is shown and is to be played from by another player.
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Dummy as a noun (UK):
A bodily gesture meant to fool an opposing player in sport; a feint.
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Dummy as a noun (linguistics):
A word serving only to make a construction grammatical.
Examples:
"The pronoun "it" in "It's a mystery why this happened" is a dummy."
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Dummy as a noun (programming):
An unused parameter or value.
Examples:
"If <code>flag1</code> is false, the other parameters are dummies."
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Dummy as a noun (sports, mostly, rugby, soccer):
A feigned pass or kick or play in order to deceive an opponent.
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Dummy as a verb:
To make a mock-up or prototype version of something, without some or all off its intended functionality.
Examples:
"The carpenters dummied some props for the rehearsals."
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Dummy as a verb:
To feint
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Pacifier as a noun:
Someone or something that pacifies.
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Pacifier as a noun (North America):
A rubber or plastic device imitating a nipple that goes into a baby's mouth, used to calm and quiet the baby.