A person of great or varied learning; a great scholar.

A person who knows, or professes to know, everything.

That goes about in the form of a living creature. Frequently in figurative or similative expressions. Referring to a person who has great stores of…

= polymath, n.

A person of great or varied learning; a person acquainted with many fields of study; an accomplished scholar.

A person who is skilled in or knowledgeable about a particular subject.

= polyhistor, n.

A person who arrogantly pretends to knowledge of all matters or subjects.

An omniscient being; spec. (with the) God. Also: a person who knows everything; a person who claims or is said to be omniscient. Cf. omniscience, n.…

A person who is knowledgeable in many subjects or branches of a subject, as opposed to a specialist; a universal scholar. Also: †a person with…

figurative. A person or thing regarded as a repository or compendium of information.

A person who knows everything, or (esp.) who behaves as if he or she knows everything.

allusively. More fully Admirable Crichton. A person who excels in all kinds of studies and pursuits; (in later use esp.) a person of an inferior…

A person who studies or is versed in pantology (frequently used ironically).

A person possessing or pretending to universal knowledge; an advocate of pansophy.

One who attempts to deal with every branch of knowledge, or whose studies have a very extensive range.

= know-all, n.

A person who knows about, or is extremely proficient in, all or many subjects, esp. the sciences.

A supposed expert or intellectual, esp. one who is out of touch with practical matters.