noun

• An arrangement of items in a line.
• The process of adjusting a mechanism such that its parts are aligned; the condition of having its parts so adjusted.
• An alliance of factions.
• (artificial intelligence) The goals and values of an artificial intelligence, considered relative to human ethical standards.
• (roleplaying games) One of a set number of moral positions or philosophies a character can take.
• (astronomy) The conjunction of two celestial objects.
• (transport) The precise route or course taken by a linear way (road, railway, footpath, etc.) between two points.
• (bioinformatics) A way of arranging DNA, RNA or protein sequences in order to identify regions of similarity.