Merriam-Webster's Advanced Learner's English Dictionary

Revised and Updated for 2016. Created by America's foremost language experts, this dictionary is designed to help advanced students master spoken and written English, as it is actually used. Defines 100,000 words and phrases in plain English that is easy for learners to understand. Highlights 3,000 core vocabulary words - underlined in blue - that are essential for students to learn. 160,000 example sentences - the most of any learner's dictionary - clarify meanings and are highlighted in blue for easy reading. Perfect for ESL, EFL, ELL, TEFL, TOEFL and TOEIC study and instruction. In-depth coverage of American English grammar and usage.