Meaning of GRADE in English

(STANDARD) [noun] [C] - a particular standard, quality or rankWhich grade (of) petrol does this car take?He's suffering from some kind of low-grade (= slight) infection, which he can't seem to get rid of.There's some really high-grade (= high quality) musicianship on this recording.Factories and offices need to have industrial-grade (= made for use in industrial places of work) flooring.These nuclear weapons contain a total of about 100 tonnes of weapons-grade (= suitable for making weapons) plutonium.The planned job losses will mainly affect the lower grades (= ranks) of staff.Bill has been (UK and ANZ) on/(US) at the same grade (= his job has been of the same level of importance, or he has had the same level of pay) for several years now.In order to gain university places, British students are required to get certain grades (= results in an examination) at A level.Ian wanted to be an actor, but he didn't make the grade (= was not successful).(UK) Things seem to be on the up/down grade (= to be getting better/worse).(US and ANZ) A grade point average ( GPA) is a number which is the average mark received for all the courses a student takes and shows how well the student is doing.The winners were selected on the basis of their grade point average, SAT scores and answers to essay questions.Tulane limits the scholarships to students who have been granted admission and have at least a 2.0 grade point average in high school.

Cambridge English vocab.      Кембриджский английский словарь.