Decrease and Annex

noun

• A change downward.
  • usage: "there was a decrease in his temperature as the fever subsided"; "there was a sharp drop-off in sales"
  • synonyms: lessening, drop-off
• A process of becoming smaller or shorter.
  • synonyms: decrement
• The amount by which something decreases.
  • synonyms: decrement
• The act of decreasing or reducing something.
  • synonyms: diminution, reduction, step-down

verb

• Decrease in size, extent, or range.
  • usage: "The amount of homework decreased towards the end of the semester"; "The cabin pressure fell dramatically"; "her weight fell to under a hundred pounds"; "his voice fell to a whisper"
  • synonyms: diminish, lessen, fall
• Make smaller.
  • usage: "He decreased his staff"
  • synonyms: lessen, minify

• (v.t.) To cause to grow less; to diminish gradually; as, extravagance decreases one's means.
• (v.) A becoming less; gradual diminution; decay; as, a decrease of revenue or of strength.
• (n.) To grow less, -- opposed to increase; to be diminished gradually, in size, degree, number, duration, etc. or in strength, quality or excellence; as, they days decrease in length from June to December.
• (v.) The wane of the moon.

noun

• An addition that extends a main building.
  • synonyms: annexe, extension, wing

verb

• Take (territory) as if by conquest.
  • usage: "Hitler annexed Lithuania"
• Attach to. .

• (v.t.) To attach or connect, as a consequence, condition, etc.; as, to annex a penalty to a prohibition or punishment to guilt.
• (v.t.) To join or add, as a smaller thing to a greater.
• (v.t.) To join or attach; usually to subjoin; to affix; to append; -- followed by to.
• (v.i.) To join; to be united.
• (n.) Something annexed or appended; as, an additional stipulation to a writing, a subsidiary building to a main building; a wing.

(DoD) A document appended to an operation order or other document to make it clearer or to give further details.