D defs.my
Entry 2 senses Webster, 1913

Alignment

/əl-īn'-mənt/ · A·lign·ment · IPA /əˈlaɪn.mənt/
01 n. The act of adjusting to a line; arrangement in a line or lines; the state of being so adjusted; a formation in a straight line; also, the l…
  1. 1.
    The act of adjusting to a line; arrangement in a line or lines; the state of being so adjusted; a formation in a straight line; also, the line of adjustment; esp., an imaginary line to regulate the formation of troops or of a squadron.
  2. 2.
    The ground-plan of a railway or other road, in distinction from the grades or profile.(Engin.)