TOEFL Vocabulary Set 8 – 2026 – 25+ Academic Words with Definitions – Scientists, Speech, Aging, Hardship

This document presents 25+ high-frequency academic vocabulary terms specifically curated for TOEFL iBT preparation, organized as part of Lesson 8 in a structured Q&A format. Each term is clearly defined with its part of speech and includes synonyms or contextual meanings that commonly appear in TOEFL Reading and Listening sections. Vocabulary themes range from science, social topics, and personal experiences to academic writing and rhetoric, with terms such as: Peroration, upswings, insurgency, and antedate for essay structure, history, and trend descriptions Herpetologist, ornithologist, ichthyologist to support biology and natural science topics Superannuation, senescence, rejuvenation for aging and health-related contexts Privation, ennui, desolate, and foist for describing hardship, emotion, or social analysis This document is ideal for: TOEFL iBT test takers seeking to expand vocabulary for high-level academic content ESL learners at intermediate to advanced levels Teachers creating vocabulary assessments or drills Students reviewing for IELTS, SAT, or academic English writing courses Each definition is formatted for rapid recall, test-readiness, and word retention. The vocabulary aligns with frequent TOEFL topics such as sociology, biology, rhetoric, and ethics. Keywords: TOEFL vocabulary, peroration, insurgency, herpetologist, senescence, superannuation, rejuvenation, demarcate, antedate, ichthyologist, ornithologist, ennui, foist, quintessence, expedient, privation, desolate, TOEFL 2026, academic English, ESL word list