Pearson (the publisher) offers a robust online version of their dictionary. While it requires an internet connection, it offers the full text, audio pronunciations, and interactive exercises.
Most free PDFs floating around the internet are scans of the (circa 2000–2007). American slang changes rapidly. Words like Ghost (to abruptly cut contact), Binge-watch , or Photobomb are missing from old editions. You would be learning outdated English. longman advanced american dictionary pdf
: Includes standard vocabulary along with slang, idioms, and colloquialisms. Pearson (the publisher) offers a robust online version
: Definitions are written using the Longman Defining Vocabulary, a set of 2,000 common words that ensures explanations are easy to understand without sacrificing precision. it offers the full text