elementary
adjective(el-e-men-ta-ry)
of or being the essential or basic part
Examples:
An elementary need for love and nurturing. 
elementary
adjective(el-e-men-ta-ry)
easy and not involved or complicated
Examples:
An elementary problem in statistics. 
Elementary, my dear Watson. 
elementary
(el-e-men-ta-ry)
of or pertaining to or characteristic of elementary school or elementary education
Examples:
The elementary grades. 
Elementary teachers.