What is the meaning of Clavis?

A Roman key.

A device for restraint of the hands.

Synonym of glossary: a key to the meaning of various terms.

A key; an identification guide; a series of logically organized groups of discriminating information which aims to allow the user to correctly identify a taxon.

second-person singular present subjunctive of clavar

a key

Ellipsis of clāvis trochī.: an instrument in the form of a key, by which a top was set in motion

a lever or bar for tightening a screw press

dative/ablative plural of clāvus

dative/ablative plural of clāva

Source: wiktionary.org