The USCIS issues an Employment Authorization Document in the following categories: 1  EAD: This document proves you are allowed to work in the U.S.  Renewal EAD: You should apply for an EAD renewal four months before your original EAD expires.
Definition of memo for English Language Learners. : a usually brief written message from one person or department in an organization, company, etc., to another. Thesaurus: All synonyms and antonyms for memo Spanish Central: Translation of memo Nglish: Translation of memo for Spanish speakers.
A memorandumâusually known as a memoâis a document which is most commonly used for internal communication between coworkers or members of a department. You may need to use a memo as an external method of communication if, for example, you need to communicate with clients or other business associates.