Not formal or ceremonious. / Not in accord with the usual regulations. / Suited for everyday use. / (of language) Reflecting everyday, non-ceremonious usage.

One who informs someone else about something. / A person who tells authorities about improper or illegal activity. / One who informs, animates, or inspires.

(archaic, transitive) To instruct, train (usually in matters of knowledge). / (transitive) To communicate knowledge to. / (intransitive) To impart information or knowledge.

Without regular form; shapeless; ugly; deformed.

simple past tense and past participle of inform

Instructed; having knowledge of a fact or area of education. / Based on knowledge; founded on due understanding of a situation.

(obsolete) Created, given form. / (obsolete) Unformed or ill-formed; deformed; shapeless. / (astronomy, obsolete) Not included within the figures of any of the ancient constellations.

An electronic system used to store, process and display geographic information, especially maps

the totality of information, especially that which is accessible online

One who relays confidential information to someone, especially to the police; an informer.