Language is a versatile tool that adapts to various contexts and situations. In English, communication can take on different tones and styles depending on the level of formality required. The choice between formal and informal language hinges on factors such as the audience, purpose of communication, and the setting. In this article, we will explore when to use informal and formal language, provide formal and informal langauge examples, highlight the main differences between the two, and offer a comprehensive overview of the distinctions.

When to Use Informal and Formal Language:

Informal Language: Informal language is characterized by its relaxed and casual tone. It is often used in familiar, everyday situations where the level of politeness is less important. Informal language is suitable for interactions with friends, family, and colleagues you have a close relationship with. It is also common in informal written communication, such as texting, personal emails, and social media updates. On our English speaking courses at English Al Fresco we will be using informal language all the time as we see you as a friends and want you to feel comfortable and relaxed when staying with us.

Formal Language: Formal language, on the other hand, is reserved for situations that demand a high level of respect, professionalism, and politeness. It is utilised in academic, professional, and official settings, where proper etiquette and adherence to established norms are essential. Formal language is used in academic papers, business correspondence, official reports, presentations, and speeches.

Formal LanguageInformal Language
I would like to express my gratitude for your prompt response.Thanks for getting back to me so quickly.
The board of directors has convened a meeting for next week.The directors are having a meeting next week.
It is imperative to adhere to the established guidelines.You really need to follow the rules.
The research paper discusses the implications of the findings.The paper talks about what the results mean.
Kindly find the attached document for your perusal.I've attached the file for you to check out.
The President will be delivering a speech at the event.The Prez is gonna give a talk at the party.

Main Differences between Formal and Informal Language:

  1. Vocabulary and Word Choice:

    • Formal: Formal language employs sophisticated vocabulary and avoids slang or colloquialisms.
    • Informal: Informal language uses everyday words and may include slang or informal expressions.
  2. Sentence Structure and Grammar:

    • Formal: Sentence structures are often more complex, with a focus on proper grammar and punctuation.
    • Informal: Sentence structures tend to be simpler, and grammar rules might be more relaxed.
  3. Pronouns and Addressing:

    • Formal: Third-person pronouns are commonly used (e.g., “he,” “she,” “they”), and titles and last names are used for addressing.
    • Informal: First-person pronouns (e.g., “I,” “we”) are frequently used, and first names or even nicknames are used for addressing.
  4. Contractions:

    • Formal: Contractions (e.g., “don’t,” “can’t”) are often avoided in formal language.
    • Informal: Contractions are commonly used in informal language.
  5. Tone and Politeness:

    • Formal: The tone is polite, respectful, and professional, often using honorifics and formal language markers.
    • Informal: The tone is casual, relaxed, and may include humor or friendly expressions.
  6. Cultural References and Jargon:

    • Formal: Avoids cultural references and specialized jargon that might not be universally understood.
    • Informal: May include cultural references and jargon that are familiar to the intended audience.
  7. Verb Usage:

    • Formal: Tends to use complete verb phrases and avoids phrasal verbs.
    • Informal: Phrasal verbs (e.g., “take off,” “get along”) are more common in informal language.
  8. Emphasis and Intensity:

    • Formal: Emphasis is achieved through careful word choice and syntax.
    • Informal: Emphasis can be achieved through exclamation marks, capitalization, and emotive language.

Mastering the Art of Using Informal and Formal English Language: How can you practice?

The ability to switch between informal and formal language is a valuable skill that enhances communication versatility. Whether you’re engaging with friends in a relaxed setting or presenting a professional report, practicing these two language styles is crucial for conveying the appropriate tone and achieving desired outcomes. Here’s a practical guide to help you navigate the nuances of informal and formal English language usage.

1. Understand the Context:

Before deciding whether to use informal or formal language, consider the context of your communication. Are you engaging in a casual conversation with friends, writing a business email, or presenting a report? Understanding the setting will guide your language choice.

2. Identify Your Audience:

The audience plays a significant role in determining the level of formality you should adopt. Consider the relationship you have with your audience – are they close friends, colleagues, superiors, or a diverse audience? Tailor your language to match their expectations and preferences.

3. Listen and Observe:

One effective way to practice informal and formal language is by listening to native speakers and observing their interactions. Pay attention to the words, phrases, and tone they use in different situations. This exposure will help you grasp the subtle nuances of each style.

4. Study Examples:

Collect and analyse examples of both informal and formal language. Read articles, watch videos, and review conversations that demonstrate each style. This will provide you with a practical understanding of how each style is employed in real-life scenarios.

5. Expand Your Vocabulary:

For formal language, work on expanding your vocabulary with more sophisticated words and phrases. Invest time in reading academic papers, professional journals, and well-written literature. To enhance your informal language, engage with contemporary media, novels, and conversations with friends.

6. Practice Writing:

Writing is an effective way to practice both language styles. Draft emails, essays, and reports in formal language to improve your ability to convey professionalism. On the flip side, write informal texts, journal entries, and social media posts to refine your casual language skills.

7. Role Play:

Engage in role-playing scenarios where you switch between informal and formal language. This exercise can be done alone or with a partner. Simulating real-life situations helps you gain confidence in adapting your language to different contexts.

8. Seek Feedback:

When practicing informal and formal language, seek feedback from peers, mentors, or language experts. Constructive feedback can provide insights into areas for improvement and help you refine your language choices.

9. Use Language Learning Apps:

There are several language learning apps and platforms that offer exercises and lessons on both informal and formal language usage. These interactive tools can help you practice in a structured and engaging manner.

10. Maintain Awareness:

As you practice, remain conscious of the language style you are using. This mindfulness will enable you to switch between informal and formal language seamlessly, enhancing your ability to adapt to different communication contexts.

11. Review and Reflect:

Regularly review your conversations and written work to assess your language choices. Reflect on instances where you successfully navigated between informal and formal language and areas where you could improve.

12. Embrace the Learning Process:

Learning how to use informal and formal language is a gradual process. Don’t be discouraged by mistakes; they are opportunities for growth. Embrace the learning journey and celebrate your progress.

In Brief

In summary, the choice between formal and informal language depends on the context and the audience. Formal language is employed in academic, professional, and official settings, where respect and professionalism are paramount. Informal language is suitable for everyday interactions and personal communication. The key differences between the two lie in vocabulary, sentence structure, pronoun usage, contractions, tone, cultural references, and more.


Being able to navigate between formal and informal language is a crucial skill for effective communication. It allows individuals to adapt to various social and professional scenarios, convey messages accurately, and establish the appropriate level of rapport with their audience. Whether writing a business email, giving a presentation, or chatting with friends, understanding the nuances of formal and informal language enhances communication prowess and fosters successful interactions.


At الفرسکو انگلیسی we will help you to understand better slang and colloquial phrases used in everyday situations so you can sound more natural when using English. To master both informal and formal language, consider joining one of our دوره های آموزشی where we delve deep into the nuances of English communication.

× How can I help you?