vt a compliment.
2. complement ·vt to compliment.
3. complement ·vt the whole working force of a vessel.
4. complement ·vt to supply a lack; to supplement.
5. complement ·vt full quantity, number, or amount; a complete set; completeness.
6. complement ·vt something added for ornamentation; an accessory.
7. complement ·vt that which is required to supply a deficiency, or to complete a symmetrical whole.
8. complement ·vt a second quantity added to a given quantity to make it equal to a third given quantity.
9. complement ·vt that which fills up or completes; the quantity or number required to fill a thing or make it complete.
10. complement ·vt the interval wanting to complete the octave;
the fourth is the complement of the fifth, the sixth of the third.