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/ˈpɪŋ.ə(ɹ)/ · noun
A device that emits a short, high-pitched sound burst, such as in sonar or other echo location systems..
We couldn't take the boat into the shallows near the reef because our sonar pinger was broken.
The scientist attached a pinger to the carapace of the sea turtle to track its migration.
Some people like fancy pingers with extra features, but I always use the default ping application.
Every time we replace the main page, we get flooded with pingers making sure our web site is still there.
That was a great party. Everyone took a pinger or two.
Use pinger when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Pinger means A device that emits a short, high-pitched sound burst, such as in sonar or other echo location systems..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
We couldn't take the boat into the shallows near the reef because our sonar pinger was broken.
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