a conical child's plaything tapering to a steel point on which it can be made to spin; "he got a bright red top and string for his birthday"
teetotum
الواصلة
tee·to·tum
النطق
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[ 'tE-'tO-t&m ] (noun.) 1720. 1tee + Latin totum all, from neuter of totus whole; from the letter T inscribed on one side as an abbreviation of totum all.