Same Word Used as Preposition and Other Parts of Speech


In English grammar, many words can fall into more than one category of parts of speech. It's important to be able to recognize when the same word is used as a preposition and when it is used as another part of speech. This tutorial is aimed at aiding the learner understand how to distinguish this.

What Are Prepositions?

Prepositions are words that link or connect nouns, pronouns, or phrases to other parts of the sentence. They act as guides, indicating the relationship of the noun or pronoun to the rest of the sentence. Some common examples are "in", "on", "at", "from", "with" etc.

An example of a preposition in a sentence is: "He is on the train."

Different Parts of Speech

Beyond prepositions, English has various other parts of speech like nouns, verbs, adverbs, adjectives, conjunctions, interjections, and pronouns. The way a word functions in a sentence is what usually determines its part of speech.

Same Word Used as a Preposition and Other Parts of Speech

It's not unusual to find words used as prepositions in some sentences and as other parts of speech in other sentences. Let's discuss some common examples:

1. Word "on" as a Preposition and as an Adverb

The word "on" often acts as a preposition in sentences, for example:

"The book is on the table."

In this case, it is a preposition, telling us where the book is in relation to the table. Now observe this sentence:

"Please leave the light on."

Here, the word "on" is an adverb modifying the verb "leave", indicating the state of the light.

2. Word "over" as a Preposition and as an Adverb

Consider this sentence:

"She jumped over the fence."

"Over" is used as a preposition, indicating the position of the subject in relation to the fence. Now consider this sentence:

"Come over to my place."

In this case, "over" works as an adverb indicating direction.

Rules for Identifying Prepositions and Other Parts of Speech

The first thing to remember here is context. A word can change its part of speech based on how it is used in a sentence. Some tips to discern this include:

1.Check for an Object

Prepositions usually have an object. If you can identify an object that the preposition is relating to something else, then it is likely a preposition. In the sentence "He jumped over the fence", "over" is a preposition because it is directly in relation to the fence, the object of the preposition.

2. Check for Action/State Modifiers

Adverbs modify the action described by the verb or state described by an adjective. In the sentence "Leave the light on", "on" is an adverb describing the state of the light.


When it comes to English, context is king. The same word can have different roles in different contexts, which is why understanding their function in the sentence is key. The position of a word in a sentence, the relationship it has with other words and phrases, all contribute to shaping its part of speech.

English is unique and sometimes complicated, but we hope that this guide gives you a clear understanding of how the same word can be used as a preposition and as other parts of speech.

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