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Pronunciation varies by accent · noun
A metasyntactic term used for any object whose actual name the speaker does not know or cannot remember..
Use whaddayacallit when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Whaddayacallit means A metasyntactic term used for any object whose actual name the speaker does not know or cannot remember..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use whaddayacallit where its definition matches the intended context.
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