plural of thirteenth grade

(education) Synonym of kindergarten / (US, education) A hypothetical year of grade school before first grade.

plural of zeroth grade

plural of 1st grade

Alternative spelling of zeroth grade

(US, education) The year in school that comes after twelfth grade in some schools in the US, and that came after twelfth grade before 1988 in Ontario, Canada.

present participle of grade on a curve

Third-person singular simple present indicative form of grade on a curve

(anthropology) An organized, culturally defined social category of people with membership based on age; in some societies it is entered automatically when one reaches a certain age, while in others it is entered through an initiation rite and/or the payment of a fee.

Of the highest quality.