Academic

Question 1

preface

Answer 1

(n. ) introduction of a book
eg: A significant portion of the preface is an introduction, which is especially written for those who don’t know the previous book.

Question 2

erudite

Answer 2

(adj. ) having or showing great knowledge or learning; learned; knowledgeable
eg: Ken could turn any conversation into an erudite discussion

Question 3

escoteric

Answer 3

(adj. ) abstruse; puzzle; perplexing; enigmatic

eg: escoteric philosophical debates

Question 4

abstruse

Answer 4

(adj. ) difficult to understand; escoteric

eg: an anstruse philosophical inquiry