(simile) In a perfect state; thoroughly sound.

(astronomy) The angular distance east of the vernal point (“the solar zenith at the March equinox”); the celestial equivalent of longitude.

(Christianity, political science, philosophy) The Christian doctrine that monarchs have a God-given right to rule, that they are answerable only to God, and that rebellion is sinful.

(law) A formal statement of the rights of a specified group of people.

plural of right-to-lifer

(nautical) Able to right itself if overturned.

(chiefly in the plural) Any right associated with family planning, such as the right to birth control and the right to abortion.

(colloquial) OK, okey-dokey, acknowledgment that a request has been heard and understood.

(often attributive) The entitlement of individuals to own and carry guns.

(linear algebra) An eigenvector corresponding to the right transform of a given linear operator; i.e. u such that rm Au=𝜆u!.