Tail
Part of speech: verb
Definition: To surreptitiously follow and observe.
Part of speech: noun
Definition: The caudal appendage of an animal that is attached to its posterior and near the anus. The tail-end of a creature (buttocks, even if tailless) or an object, e.g. the rear of an aircraft's fuselage, containing the tailfin. An object or part thereof resembling a tail in shape, such as the thongs on a cat-o'-nine-tails or other multi-tail whip. Specifically, the visible stream of dust and gases blown from a comet by the solar wind. The latter part of a time period or event, or (collectively) persons or objects represented in this part. The part of a distribution most distant from the mode; as, a long tail. One who surreptitiously follows another. The last four or five batsmen in the batting order, usually specialist bowlers. The lower loop of the letters in the roman alphabet, as in g, q or y. The side of a coin not bearing the head; normally the side on which the monetary value of the coin is indicated; the reverse. (of a sequence) All the last terms of a sequence, from some term on. The male member of a person or animal. Sexual intercourse as a man on top.
Example sentence: A winner is someone who recognizes his God-given talents, works his tail off to develop them into skills, and uses these skills to accomplish his goals.
Empennage
Part of speech: noun
Definition: The tail assembly of an aircraft.The feathers of an arrow or the tail fins of a bomb or rocket used to stabilize the longitudinal axis of the projectile parallel to the flight path.