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Pronunciation varies by accent · noun
Any of several species of swifts of Apodinae, having shafts of the tailfeathers terminate in rigid spines..
Use spinetail when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Spinetail means Any of several species of swifts of Apodinae, having shafts of the tailfeathers terminate in rigid spines..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use spinetail where its definition matches the intended context.
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