One who adheres or follows laws, guidelines, etc.
One who makes observations, monitors or takes notice
A crew member on an aircraft who makes observations of enemy positions or aircraft
A person sent as a representative, to a meeting or other function to monitor but not to participate
A country or other entity which has limited participation rights within an organization.
A sentry etc. manning an observation post
One who has mastered (especially when able to speak) several languages.
A publication in several languages; specifically, a book (especially a bible) containing several versions of the same subject matter or text in several languages.
A mixture of languages or nomenclatures.
A file that can be interpreted validly as multiple formats.
A program written to be valid in multiple programming languages.
Of a person: speaking, or versed in, many languages; multilingual.
Containing, or made up of, several languages; specifically, of a book (especially a bible): having text translated into several languages.
Comprising various (native) linguistic groups; multilingual.