Above: The Dual NDVI Ultra Probe Unit is powered by a Nano Logger (enhanced by an array of beryllium spheres) and is ready for field action. The TSL2561 is a common luminosity sensor. It measures how bright it is and reports in units that relate to the brightness that people perceive (lux).
An adjective describes (tells us more about) a noun or a pronoun. For example: student is a noun. But we can say more about the student in our sentence by using an adjective: intelligent student; clever student; lazy student; good student... etc. So, here is a sentence: The teacher says Marie is a good student.
What is an adjective? Adjectives are words that describe or modify other words, making your writing and speaking much more specific, and a whole lot more interesting. Words like small, blue, and sharp are descriptive, and they are all examples of adjectives. Because adjectives are used to identify or quantify individual people and unique things, they are usually positioned before the noun or pronoun that they modify. Some sentences contain multiple adjectives.