Introduction
When learning Spanish, one of the most useful conversational tools is knowing how to say by the way in Spanish. This common English phrase appears naturally in conversations when we want to introduce a new topic, share additional information, or change the subject smoothly without abruptness. In Spanish, there are several expressions that convey this meaning, each with slightly different nuances and contexts where they work best. Understanding these phrases will help you sound more natural and fluent in your Spanish conversations, whether you’re speaking with native speakers or practicing with language partners. This guide will walk you through the most popular and practical ways to express this concept in Spanish.
The Most Common Way: A Propósito
The most widely recognized and used expression for by the way in Spanish is a propósito. This phrase literally translates to by purpose or on purpose, but it functions perfectly as the Spanish equivalent of by the way in everyday conversation. You’ll hear a propósito used constantly in Spanish-speaking countries, making it an essential phrase to master.
To use a propósito effectively, simply place it at the beginning of your sentence or as an introductory element before sharing your additional information. For example: A propósito, ¿viste la película que te recomendé? (By the way, did you see the movie I recommended to you?) or A propósito, mañana no podré ir a la reunión. (By the way, I won’t be able to go to the meeting tomorrow.)
The beauty of a propósito is its versatility. It works equally well in formal and informal settings, making it appropriate whether you’re chatting with friends, colleagues, or people you’ve just met. Spanish learners often find this phrase invaluable because it appears naturally in conversations across all Spanish-speaking regions, from Spain to Mexico, Argentina, and beyond.
An Alternative: Por Cierto
Another excellent way to say by the way in Spanish is por cierto. This expression literally means for sure or certainly, but in conversational Spanish, it functions as a perfect synonym for a propósito. Many native speakers use por cierto interchangeably with a propósito, though some regions may favor one over the other.
Using por cierto is straightforward. Place it at the start of your sentence when you want to introduce a tangential comment or additional piece of information. For instance: Por cierto, ¿cómo está tu hermano? (By the way, how is your brother?) or Por cierto, se me olvidó decirte que la clase fue cancelada. (By the way, I forgot to tell you that the class was canceled.)
In many Spanish-speaking countries, particularly in Spain and parts of Latin America, por cierto is equally common as a propósito. Some native speakers report using por cierto more frequently in casual conversations, while a propósito might be slightly more formal. However, both expressions are perfectly acceptable in virtually any context, so learning both will make your Spanish more natural and authentic.
Informal Options: Ah, by the Way
For more casual, informal conversations, Spanish speakers often use simpler constructions. You might hear ah or oye as standalone interjections before introducing your tangential comment. Ah is simply an exclamation that means oh or ah, while oye means listen or hey when addressing someone.
These informal starters are commonly followed by your comment: Ah, casi se me olvida que mañana tenemos que estudiar. (Oh, I almost forgot we have to study tomorrow.) or Oye, ¿ya viste a Carlos? Estaba en el supermercado ayer. (Hey, did you see Carlos? He was at the supermarket yesterday.)
While ah and oye alone don’t directly translate to by the way, they serve the same conversational function in informal settings. They help transition between topics naturally and signal to your listener that you’re about to share something additional or tangential to your current conversation. These expressions are extremely common in everyday Spanish and particularly popular among younger speakers.
Regional Variations and Nuances
It’s important to understand that Spanish, like all languages, has regional variations. While a propósito and por cierto are understood and used throughout the Spanish-speaking world, some regions may favor one expression slightly over the other.
In Spain, both a propósito and por cierto are equally popular and widely used in formal and informal contexts. Mexican Spanish speakers also use both expressions regularly, though some regional differences in frequency may exist. Argentine Spanish, Colombian Spanish, and other Latin American varieties all recognize and use these phrases commonly.
Beyond the main expressions, you might also encounter a todo esto, which literally means to everything this but functions as another way to say by the way or speaking of which. For example: A todo esto, ¿recibiste mi mensaje? (By the way, did you receive my message?) While less common than a propósito or por cierto, a todo esto is still understood and used throughout the Spanish-speaking world.
Practical Examples in Context
To help solidify your understanding, let’s look at several practical examples showing how native speakers use these expressions in realistic conversations.
Imagine you’re discussing weekend plans with a friend, and you suddenly remember something else you wanted to mention: Vamos al cine el sábado. A propósito, ¿traes dinero para las entradas? (We’re going to the movies on Saturday. By the way, are you bringing money for the tickets?) This shows how naturally a propósito fits into real conversation.
Or consider a workplace scenario: Terminé el proyecto que me pediste. Por cierto, el jefe quería verte después de las tres. (I finished the project you asked me to do. By the way, the boss wanted to see you after three o’clock.) Here, por cierto smoothly introduces additional, related information.
In a more casual setting with friends: La fiesta estuvo increíble. Ah, y vi a María allá. Estaba con su nuevo novio. (The party was incredible. Oh, and I saw María there. She was with her new boyfriend.) This example shows how ah works for informal transitions.
Tips for Natural Usage
When using these expressions, native speakers follow certain patterns that make their speech sound more natural. First, remember that you can place these phrases at the beginning, middle, or end of your thought, though the beginning is most common. You can also pause slightly after saying a propósito or por cierto to signal that you’re introducing something new or additional.
Second, pay attention to the tone and formality of your conversation. While both a propósito and por cierto work in formal and informal settings, pairing them with appropriate vocabulary and grammar will help your speech sound more polished and natural. In formal business emails or presentations, either expression works perfectly. In casual texting or conversations with close friends, both are equally appropriate.
Finally, listening to native speakers through Spanish media, podcasts, or language learning platforms will help you internalize the natural rhythm and frequency of these expressions. The more you listen to authentic Spanish, the better you’ll understand how and when to use by the way phrases naturally.
Conclusion
Knowing how to say by the way in Spanish opens up a new dimension of conversational fluency. The primary expressions you’ve learned—a propósito and por cierto—are your go-to phrases for introducing tangential comments or additional information in Spanish. Both are widely understood and used throughout the Spanish-speaking world, making them essential additions to your vocabulary. Whether you’re having a casual chat with friends or engaging in professional conversations, these phrases will help you transition between topics smoothly and sound more like a native speaker. As you continue your Spanish learning journey, pay attention to how native speakers use these expressions in context, and don’t hesitate to incorporate them into your own conversations. With consistent practice, these phrases will become second nature, significantly enhancing your ability to communicate naturally in Spanish.
