What is the difference between Longman Advanced Advanced English-Chinese Dictionary and Longman Contemporary Advanced English Dictionary (English-English? English-Chinese Dual Interpretation)? What is the difference between a dictionary and a thesaurus?

Longman and Oxford have different publishing houses.

They have small differences in the interpretation of some words.

For example,

Longman; research n[U] is also called researches formal

Oxford; research noun [U](also researches[pl.] especially in BrE)

But the usage is the same, these The small difference is caused by the different views of the linguistic experts hired by the two dictionaries, and it has no impact. And the fourth edition of Longman narrows this gap.

Oxford also includes some trademarks, such as speedo, etc.

Perhaps the biggest difference is the use of phonetic symbols, and the two versions are different.

In addition, there is a big difference in the appendices.

The illustrations of some words are also different.

In general, Oxford has a stronger British atmosphere.

Dictionary and thesaurus are synonyms.