A device for measuring or indicating velocity or speed, as of blood, a river, a machine, etc.
A device for measuring the revolutions per minute (RPMs) of a revolving shaft, as with the driveshaft of an automobile.
A device fitted to a vehicle to measure mileage etc.
Either of two similar bird species in the shorebird genus Heteroscelus (Tringa in some taxonomies).
One who tattles (notifies authorities of illicit behavior) or is inclined to do so; a tattletale.