generationEnglishOxford American Thesaurusgeneration noun 1 people of the same generation: age, age group, peer group, cohort, stage of life. 2 (generations) generations ago: ages, an age, years, eons, an eon, a long time, an eternity; British, informal donkey's years, yonks. 3 the next generation of computers: crop, batch, wave, type, range. 4 creativity is the generation of novel ideas: creation, causing, causation, making, engendering, spawning, production, initiation, origination, inception, occasioning, prompting, kindling, triggering, inspiration. ▷antonyms destruction. 5 the male role in human generation: procreation, reproduction, propagation, breeding, fathering, siring, engendering, spawning, creation; literary begetting.