adj. 2.  Having fair knowledge; acquainted: Are you familiar with these roads? 3.  Of established friendship; intimate: We are on familiar terms. 4.  Natural and unstudied; informal: lectured in a familiar style. 5.  Taking undue liberties; presumptuous: Students should not be familiar toward an instructor. 6.  Familial. 7.  Domesticated; tame. Used of animals. n. 1.  A close friend or associate. 2.  An attendant spirit, often taking animal form. 3.  One who performs domestic service in the household of a high official. 4.  A person who frequents a place. [Middle English, from Old French familier, from Latin familiāris, domestic, from familia, family; see  FAMILY.] fa·miliar·ly adv.  | 
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.







