[{"Bold_text": "noun", "List Items": ["something that completes or makes perfect:A good wine is a complement to a good meal.", "the quantity or amount that completes anything:We now have a full complement of packers.", "either of two parts or things needed to complete the whole; counterpart .", "full quantity or amount; complete allowance.", "the full number of and crew required on a ship.", "Grammar.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, assmallin The house is smallorpresidentin They elected her president.Compare object complement object complement, subject complement subject complement.any word or group of words used to complete a grammatical construction, especially in the predicate, including adverbials, ason the tablein He put it on the table,infinitives, asto goin They are ready to go,and sometimes objects, asballin He caught the ball.", "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, assmallin The house is smallorpresidentin They elected her president.Compare object complement object complement, subject complement subject complement.", "any word or group of words used to complete a grammatical construction, especially in the predicate, including adverbials, ason the tablein He put it on the table,infinitives, asto goin They are ready to go,and sometimes objects, asballin He caught the ball.", "Geometry.the quantity by which an or an arc falls short of 90° or a quarter of a circle.Compare supplement(def4) supplement(def4).", "Also calledabsolute complement.Mathematics.the set of all the elements of a universal set not included in a given set.", "Music.the interval that completes an octave when added to a given interval.", "Immunology.a system in vertebrate blood of 12 or more proteins that react in a cascade to a cell displaying immune complexes or foreign surfaces, acting in various combinations to coat the cell and promote phagocytosis, make holes in the cell wall, or enhance the inflammatory response.any of the proteins in the complement system, designated C1, C2, etc.", "a system in vertebrate blood of 12 or more proteins that react in a cascade to a cell displaying immune complexes or foreign surfaces, acting in various combinations to coat the cell and promote phagocytosis, make holes in the cell wall, or enhance the inflammatory response.", "any of the proteins in the complement system, designated C1, C2, etc.", "complementary color complementary color."]}, {"Bold_text": "verb (used with object)", "List Items": ["to complete; form a complement to:This belt complements the dress better than that one.", "Obsolete.to compliment."]}, {"Bold_text": "verb (used without object)", "List Items": ["Obsolete.to compliment."]}]