Meaning of RELATIVE in English

I. noun Date: 14th century a word referring grammatically to an antecedent, a thing having a relation to or connection with or necessary dependence on another thing, 3. a person connected with another by blood or affinity, an animal or plant related to another by common descent, a ~ term, II. adjective Date: 15th century introducing a subordinate clause qualifying an expressed or implied antecedent , relevant , pertinent , not absolute or independent ; comparative , having the same key signature, expressed as the ratio of the specified quantity (as an error in measuring) to the total magnitude (as the value of a measured quantity) or to the mean of all the quantities involved

Merriam Webster. Explanatory English dictionary Merriam Webster.      Толковый словарь английского языка Мерриам-Уэбстер.