Definition of "supplement"

Athletes' use of herbal supplements has skyrocketed in the past two decades. At the top of the list of popular herbs are echinacea and ginseng, whereas garlic, St. John's wort, soybean, ephedra and others are also surging in popularity or have been historically prevalent.

2013 March, David S. Senchina, “Athletics and Herbal Supplements”, in American Scientist‎, volume 101, number 2, archived from the original on 16 May 2013, page 134

AI models will not completely replace the humans, she said, but will serve as a “supplement” intended to aid in the brand’s representation of various sizes, skin tones and ages.

2023 April 3, Alaina Demopoulos, “Computer-generated inclusivity: fashion turns to ‘diverse’ AI models”, in Katharine Viner, editor, The Guardian‎, London: Guardian News & Media

"Mid-Lent, and the Enemy grins," remarked Selwyn as he started for church with Nina and the children. Austin, knee-deep in a dozen Sunday supplements, refused to stir; poor little Eileen was now convalescent from grippe, but still unsteady on her legs; her maid had taken the grippe, and now moaned all day: "Mon dieu! Mon dieu! Che fais mourir!"

1907 August, Robert W[illiam] Chambers, chapter IV, in The Younger Set, New York, N.Y.: D. Appleton & Company