noun

• (anatomy) The caudal appendage of an animal that is attached to its posterior and near the anus.
  "Most primates have a tail and fangs."
• (astronomy) The visible stream of dust and gases blown from a comet by the solar wind.
• (statistics) The part of a distribution most distant from the mode; as, a long tail.
• (cricket) The lower order of batsmen in the batting order, usually specialist bowlers.

verb

• (transitive) To follow and observe surreptitiously.
  "Tail that car!"
• (architecture) To hold by the end; said of a timber when it rests upon a wall or other support; with in or into
• (nautical) To swing with the stern in a certain direction; said of a vessel at anchor.
  "This vessel tails downstream."

adj

• (law) Limited; abridged; reduced; curtailed.
  "estate tail"

noun

• (law) Limitation of inheritance to certain heirs.
  "tail male"