Texting is one of the most popular forms of communication, particularly among young people, and it has its own language. One acronym that you might encounter when texting or participating in online conversations is “DEf,” which stands for “Definitely.”

The slang abbreviation for “Definitely” can be used to express agreement, excitement or enthusiasm about something. If someone tells an exciting story and then asks, “Are you excited?” you could reply, “DEf!” In this case, your response conveys a strong level of excitement.

Texting language has evolved beyond simply using acronyms to represent words. Emojis and GIFs are also frequently used as a way to express your feelings through text. You might use a smile emoji to add a lighthearted tone to your reply or a thumbs up GIF to agree with someone’s suggestion.

In some contexts, “DEf” can also mean “Definitely Not.” For example, if someone asks if you’d like to attend a certain event and you don’t want to go, you could succinctly reply “DEf.” Just be mindful of the context in which you’re using this acronym, as this can significantly change the meaning.

In addition to its usage as a slang acronym, “DEf” also stands for “Defender” in sports terminology. This sense of the acronym relates to soccer and hockey, in which a “defender” guards the other team’s goal and attempts to block shots or prevent goals from being scored.

Outside of sports, “DEf” can also signify a “Deferred Tax Asset.” This type of asset is a passive, non-cash item that may be recognized as long-term gain or loss depending on a company’s taxes and accounting.

Although it’s primarily used as a slang term to express agreement or enthusiasm, “DEf” can have a few different significances depending on the context. Whether it’s as a soccer term, a financial term, or simply a way to express agreement, “DEf” has become a mainstay in the rapidly evolving language of texting.