We found 6 dictionaries that define the word well acquainted:

General (5 matching dictionaries)

1. well acquainted: Oxford Learner's Dictionaries
2. well-acquainted, well-acquainted: Collins English Dictionary
3. well-acquainted: Wordnik
4. well-acquainted: TheFreeDictionary.com
5. well acquainted: Wiktionary

Business (1 matching dictionary)

6. well-acquainted: Legal dictionary

Definitions from Wiktionary (well acquainted) ▸ adjective:  Very familiar with someone or something. ▸ Words similar to well acquainted ▸ Usage examples for well acquainted ▸ Idioms related to well acquainted ▸ Wikipedia articles (New!) ▸ Popular nouns described by well acquainted ▸ Words that often appear near well acquainted ▸ Rhymes of well acquainted ▸ Invented words related to well acquainted