The document discusses the English word "back" and provides its meaning and grammatical functions. It can be used as an adverb, adjective, noun, or verb. As an adverb, it means away from or toward the rear. As an adjective, it describes something behind or in the past. As a verb, it means to move backwards. Examples are given to illustrate the different uses of "back". Grammar patterns, collocations, phrases, and exercises involving the word are also mentioned.

1. Native English Natural Grammar

2. Back Adverb, Adjective Noun Verb (regular) Meaning away from, toward the rear or behind something; in the past; home or point of origin. Move backwards. Adverb Ex: Please step back. Back away. Adjective It is in back of the store. We sat in back of the class. He went back home. Go back to the corner and turn right. Verb The car backed into the parking space. Noun – my back, the horse’s back. Grammar Patterns

3. Back Adverb, Adjective Noun Verb (regular) Meaning away from, toward the rear or behind something; in the past; home or point of origin. Move backwards. Adverb Ex: Please step back. Back away. Adjective It is in back of the store. We sat in back of the class. He went back home. Go back to the corner and turn right. Verb The car backed into the parking space. Noun – my back, the horse’s back. Collocations

4. Back Adverb, Adjective Noun Verb (regular) Meaning away from, toward the rear or behind something; in the past; home or point of origin. Move backwards. Adverb Ex: Please step back. Back away. Adjective It is in back of the store. We sat in back of the class. He went back home. Go back to the corner and turn right. Verb The car backed into the parking space. Noun – my back, the horse’s back. Set Phrases

5. Back Adverb, Adjective Noun Verb (regular) Meaning away from, toward the rear or behind something; in the past; home or point of origin. Move backwards. Adverb Ex: Please step back. Back away. Adjective It is in back of the store. We sat in back of the class. He went back home. Go back to the corner and turn right. Verb The car backed into the parking space. Noun – my back, the horse’s back. Examples

6. Back Adverb, Adjective Noun Verb (regular) Meaning away from, toward the rear or behind something; in the past; home or point of origin. Move backwards. Adverb Ex: Please step back. Back away. Adjective It is in back of the store. We sat in back of the class. He went back home. Go back to the corner and turn right. Verb The car backed into the parking space. Noun – my back, the horse’s back. Exercises (link to Quia)