adj

• (of a person) Having a vertical extent greater than the average. For example, somebody with a height of over 6 feet would generally be considered to be tall.
  "Being tall is an advantage in basketball."
• (of a building, etc.) Having its top a long way up; having a great vertical (and often greater than horizontal) extent.
  "Tall trees, at least about 30m high."
• (of a story) Hard to believe, such as a tall story or a tall tale.
  ""That's tall talk." "Not an inch taller than the truth.""
• (chiefly US, of a cup of coffee) Smaller than grande, usually 8 ounces (~ 230 ml).

noun

• (possibly nonstandard) Someone or something that is tall.
  "But in the second generation of hybrids (from seed of the first) talls and dwarfs were both present, and in the proportion of twelve talls to four dwarfs."