an addition made to supply something lacking, or to correct errors etc: A supplement to the dictionary is to be published next year.
az: əlavə, əlavə etmə
ru: дополнение; приложение
♦ [-ment] verb
to make, or be, an addition to: He does an evening job to supplement his wages.
az: əlavə eləmək, üstünə gəlmək
ru: дополнять