дополнение — meaning in English

dopolneniye

English meaning

addendum noun Something added on afterward, especially extra text attached to a document.
additive noun A substance added to something else in small amounts to change or improve it.
affix noun A bound morpheme attached to a word's stem, for example a prefix or a suffix.
annex noun A separate or attached building added to a larger one.
appendix noun Extra material added at the end of a book or document, giving background or supporting details.
complement noun Something that completes or goes well with something else.
object noun A physical thing that can be seen or touched.
rider noun A person who rides a horse, bicycle, motorcycle, or similar.
supplement noun Something added to make up for what's missing.

дополнение is used for these senses in English:

add-on (computer hardware, software) A software extension or hardware peripheral that provides additional functions or customization for a core application or system.
addendum Something to be added; especially text added as an appendix or supplement to a document.
additive A substance added to another substance or product to produce specific properties in the combined substance.
affix (now, uncommon) That which is affixed; an appendage.
annex An addition, an extension.
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. [from 19th c.]
complement (grammar, linguistics) 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. [from 19th c.]
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). [from 20th c.]