Meaning of ELEMENTARY in English

ELEMENTARY

/ ˌelɪˈmentri; NAmE / adjective

1.

in or connected with the first stages of a course of study :

an elementary English course

a book for elementary students

at an elementary level

—compare primary , secondary

2.

of the most basic kind :

the elementary laws of economics

an elementary mistake

3.

very simple and easy :

elementary questions

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WORD ORIGIN

late Middle English (in the sense composed of the four elements, earth, air, fire, and water ): from Latin elementarius , from elementum principle, translating Greek stoikheion step, component part. Current senses date from the mid 16th cent.

Oxford Advanced Learner's English Dictionary.      Оксфордский английский словарь для изучающик язык на продвинутом уровне.