ENGLISH
REFERENCE

complement

n. countable
C1 Advanced Oxford US //ˈkɑmpɫəmənt// UK //kˈɒmplɪmənt// com·ple·ment Academic Archaic

n. something that completes another thing or makes it better. You use this when two things work perfectly together to create a whole.

n. a thing that contributes extra features to something else in a way that improves or emphasises its quality. Often used to describe a balanced relationship between two distinct parts that form a complete set.


SIMPLE

The red wine is a perfect complement to the steak.

CONTEXTUAL

The new software serves as a necessary complement to the existing hardware, allowing the system to reach its full processing potential.

COMPLEX

In linguistic analysis, the subject complement provides essential information that follows a linking verb to describe or rename the subject of the sentence.

Synonyms
Etymology 1

From Middle English complement, from Latin complēmentum (“that which fills up or completes”), from compleō (“to fill up; to complete”) (English complete). Doublet of compliment. The verb is from the noun.

Etymology 2

See compliment.

Usage

Often followed by the preposition 'to'. Not to be confused with 'compliment', which refers to praise.

Pitfall

The scarf was a nice compliment to her outfit.The scarf was a nice complement to her outfit.Learners frequently confuse 'complement' (completing something) with 'compliment' (an expression of praise).

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