# Complement vs. Completion: What's the Difference?

## Complement and Completion Definitions

#### Complement

Something that completes, makes up a whole, or brings to perfection

A sauce that is a fine complement to fish.

#### Completion

The act of completing or the state of being completed.

#### Complement

The quantity or number needed to make up a whole

Shelves with a full complement of books.

#### Completion

(Football) A forward pass that is caught in bounds by a receiver.

#### Complement

The full crew of personnel required to run a ship.

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#### Completion

The act or state of being or making something complete; conclusion, accomplishment.

#### Complement

Either of two parts that complete the whole or mutually complete each other.

#### Completion

(legal) The conclusion of an act of conveyancing concerning the sale of a property.

#### Complement

An angle related to another so that the sum of their measures is 90°.

#### Completion

(American football) A forward pass that is successfully caught by the intended receiver.

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#### Complement

(Grammar) A word or words used to complete a predicate construction, especially the object or indirect object of a verb, for example, the phrase to eat ice cream in We like to eat ice cream.

#### Completion

(mathematics) The act of making a metric space complete by adding points.

#### Complement

(Music) An interval that completes an octave when added to a given interval.

#### Completion

(mathematics) The space resulting from such an act.

#### Complement

(Immunology) A complex system of proteins found in blood plasma that are sequentially activated and play various roles in the immune response, including lysing bacterial cell membranes, making pathogens more susceptible to phagocytes, and recruiting inflammatory cells to sites of infection or injury. Also called alexin.

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#### Completion

(computing) autocomplete

Tab completion

#### Complement

Mathematics & Logic For a universal set, the set of all elements in the set that are not in a specified subset.

#### Completion

The act or process of making complete; the getting through to the end; as, the completion of an undertaking, an education, a service.

The completion of some repairs.

#### Complement

A complementary color.

#### Completion

State of being complete; fulfillment; accomplishment; realization.

Predictions receiving their completion in Christ.

#### Complement

To serve as a complement to

Roses in a silver bowl complement the handsome cherry table.

#### Completion

(American football) a successful forward pass in football

#### Complement

Something (or someone) that completes; the consummation.

#### Completion

A concluding action

#### Complement

(obsolete) The act of completing something, or the fact of being complete; completion, completeness, fulfilment.

#### Complement

The totality, the full amount or number which completes something.

#### Complement

(obsolete) Something which completes one's equipment, dress etc.; an accessory.

#### Complement

(nautical) The whole working force of a vessel.

#### Complement

(heraldry) Fullness (of the moon).

#### Complement

An angle which, together with a given angle, makes a right angle.

#### Complement

Something which completes, something which combines with something else to make up a complete whole; loosely, something perceived to be a harmonious or desirable partner or addition.

#### Complement

A word or group of words that completes a grammatical construction in the predicate and that describes or is identified with the subject or object.

#### Complement

(music) An interval which, together with the given interval, makes an octave.

#### Complement

(optics) The color which, when mixed with the given color, gives black (for mixing pigments) or white (for mixing light).

The complement of blue is orange.

#### Complement

(set theory) Given two sets, the set containing one set's elements that are not members of the other set (whether a relative complement or an absolute complement).

The complement of the odd numbers is the even numbers, relative to the natural numbers.

#### Complement

(immunology) One of several blood proteins that work with antibodies during an immune response.

#### Complement

(logic) An expression related to some other expression such that it is true under the same conditions that make other false, and vice versa.

#### Complement

(electronics) A voltage level with the opposite logical sense to the given one.

#### Complement

(computing) A bit with the opposite value to the given one; the logical complement of a number.

#### Complement

The diminished radix complement of a number; the nines' complement of a decimal number; the ones' complement of a binary number.

The complement of $01100101\_2$ is $10011010\_2$.

#### Complement

The radix complement of a number; the two's complement of a binary number.

The complement of $01100101\_2$ is $10011011\_2$.

#### Complement

The numeric complement of a number.

The complement of −123 is 123.

#### Complement

(genetics) A nucleotide sequence in which each base is replaced by the complementary base of the given sequence: adenine (A) by thymine (T) or uracil (U), cytosine (C) by guanine (G), and vice versa.

A DNA molecule is formed from two strands, each of which is the complement of the other.

#### Complement

Obsolete spelling or misspelling of compliment. should this be at a different ety?

#### Complement

(biochemistry) alexin

#### Complement

(economics) complementary good

#### Complement

To complete, to bring to perfection, to make whole.

We believe your addition will complement the team.

#### Complement

To provide what the partner lacks and lack what the partner provides, thus forming part of a whole.

The flavors of the pepper and garlic complement each other, giving a very rich taste in combination.

I believe our talents really complement each other.

#### Complement

To change a voltage, number, color, etc. to its complement.

#### Complement

(obsolete) Old form of compliment

#### Complement

That which fills up or completes; the quantity or number required to fill a thing or make it complete.

#### Complement

That which is required to supply a deficiency, or to complete a symmetrical whole.

History is the complement of poetry.

#### Complement

Full quantity, number, or amount; a complete set; completeness.

To exceed his complement and number appointed him which was one hundred and twenty persons.

#### Complement

A second quantity added to a given quantity to make it equal to a third given quantity.

#### Complement

Something added for ornamentation; an accessory.

Without vain art or curious complements.

#### Complement

The whole working force of a vessel.

#### Complement

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

#### Complement

A compliment.

#### Complement

To supply a lack; to supplement.

#### Complement

To compliment.

#### Complement

A word or phrase used to complete a grammatical construction

#### Complement

A complete number or quantity;

A full complement

#### Complement

Number needed to make up whole force;

A full complement of workers

#### Complement

Something added to complete or make perfect;

A fine wine is a perfect complement to the dinner

#### Complement

One of a series of enzymes in the blood serum that are part of the immune response

#### Complement

Either of two parts that mutually complete each other

#### Complement

Make complete or perfect; supply what is wanting or form the complement to;

I need some pepper to complement the sweet touch in the soup