**Abbreviations** are shortened forms of words or phrases used to represent the full form of the word or phrase. They are commonly used to save time and space when writing or speaking. Here are the full forms and explanations of some common abbreviations used in dictionaries:

**1. Noun (n):** A noun is a word that represents a person, place, thing, or idea. It is one of the eight parts of speech in English grammar.

**2. Verb (v):** A verb is a word that expresses an action, occurrence, or state of being. It is another part of speech and is often used to describe what the subject of a sentence is doing.

**3. Adjective (adj):** An adjective is a word that describes or modifies a noun. It is used to provide more information about the noun, such as its size, color, or quality.

**4. Adverb (adv):** An adverb is a word that modifies a verb, adjective, or other adverb. It is used to describe how, when, where, or to what extent an action is performed.

**5. Pronoun (pron):** A pronoun is a word used in place of a noun to avoid repetition. It is used to refer to a person, object, or idea that has already been mentioned or is known from the context.

**6. Preposition (prep):** A preposition is a word that shows the relationship between a noun or pronoun and another word in the sentence. It is used to indicate location, time, direction, or manner.

**7. Conjunction (conj):** A conjunction is a word that connects words, phrases, or clauses in a sentence. It is used to show the relationship between the connected elements.

**8. Interjection (interj):** An interjection is a word or phrase used to express strong emotion or sudden interruption. It is often used to convey surprise, joy, anger, or pain.

**9. Abbreviation (abbr):** An abbreviation is a shortened form of a word or phrase. It is used to save time and space in writing or speaking. Abbreviations are commonly used in dictionaries to provide concise definitions and explanations.

**10. Acronym (acron):** An acronym is a type of abbreviation formed by taking the initial letters or parts of a series of words and pronouncing them as a single word. It is often used as a term or name for an organization, concept, or product.

**11. Synonym (syn):** A synonym is a word or phrase that has the same or nearly the same meaning as another word or phrase. It is used to provide alternative words or expressions with similar meanings.

**12. Antonym (ant):** An antonym is a word that has the opposite meaning of another word. It is used to provide contrasting or opposite words or expressions.

**13. Homonym (hom):** A homonym is a word that has the same pronunciation or spelling but a different meaning as another word. It is used to highlight words that can be easily confused or misinterpreted.

**14. Homophone (homo):** A homophone is a word that has the same pronunciation but a different meaning or spelling as another word. It is used to illustrate words that sound alike but have different meanings.

**15. Homograph (homog):** A homograph is a word that has the