noun

• A very small amount, often residual, of some substance or material.
• (electronics) A current-carrying conductive pathway on a printed circuit board.
• (engineering) A connecting bar or rod, pivoted at each end to the end of another piece, for transmitting motion, especially from one plane to another; specifically, such a piece in an organ stop action to transmit motion from the trundle to the lever actuating the stop slider.
• (fortification) The ground plan of a work or works.

verb

• (transitive) To follow the trail of.
  "I feel thy power […] to trace the ways / Of highest agents."
• (transitive) To draw or sketch lightly or with care.
  "He carefully traced the outlines of the old building before him."
• (transitive) To copy onto a sheet of paper superimposed over the original, by drawing over its lines.
• (transitive, obsolete) To copy; to imitate.
  "That servile path thou nobly dost decline, / Of tracing word by word, and line by line."

name

• (colloquial) A short form of the female given name Tracy or Tracey.