The Unified Business Identifier number, or UBI, is a nine-digit number used by the state of Washington to identify businesses there to local agencies. Businesses in Washington state use a Unified Business Identifier number for filing, taxes and identification with state agencies, according the Washington Secretary of State website.
Definition of preliminary for English Language Learners. : something that comes first in order to prepare for or introduce the main part of something else.
Noun. 1  Something assumed without proof as being self-evident or generally accepted, especially when used as a basis for an argument. 2  A fundamental element; a basic principle. ( 3 logic) An axiom. 4  A requirement; a prerequisite.