grammar school 
noun
1(In the UK) a state secondary school to which pupils are admitted on the basis of ability. Since 1965 most have been absorbed into the comprehensive school system.Northern Ireland still uses the selective grammar school system that was largely replaced by comprehensive education in Britain in the 1970s....
- Surely it's obvious that a comprehensive whose pupils only do averagely well at age fourteen have a much better chance to get their pupils to improve than a grammar school where the pupils were already gaining excellent grades?
- When Jean started at the school it was just changing from a grammar school to a comprehensive, and there were several years before it was totally comprehensive.
1.1 historical A school founded in or before the 16th century for teaching Latin, later becoming a secondary school teaching academic subjects.As early as 1496, ‘freeholders of substance’ were obliged by law to send their sons to school from age eight and every town of any consequence had a grammar school teaching Latin....
- Latin was taught in grammar school so that each new generation could study our shared history through the written word.
- During the Middle Ages, the grammar school provided education for poor scholars intended for the church and for the sons of noblemen.
2US another term for elementary school.There's a grammar school, a high school, and a college.