1. (n.) That which completes; the quantity or number required to fill a thing or make it complete\.

2. (n) That which is required to supply a deficiency, or to complete a symmetrical whole.

3. (v. t.) Full quantity, number, or amount; a complete set; completeness.

4. (n.) A second quantity added to a given quantity to make it equal to a third given quantity.

5. (v. t.) Something added for ornamentation; an accessory.

6. (n.) The whole working force of a vessel.

7. (n.) The interval wanting to complete the octave; -- the fourth is the complement of the fifth, the sixth of the third.

8. (n.) A compliment.

9. (v. t.) To supply a lack; to supplement.

10. (v. t.) To compliment.

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