Rex1
/rɛks
/noun
The reigning king (used following a name or in the titles of lawsuits, e.g. Rex v. Jones: the Crown versus Jones).
Origin
Latin, literally 'king'.
Rhymes
Rex2
/rɛks/noun
A cat, rabbit, or guinea pig of a breed with very fine short fur.For example a Rex with his silly behavior with a standoffish Russian Blue may not be the right combination.
Origin
1960s: from Latin, literally 'king'.