The DECT symbol on the o2 router is lighting up because it indicates that the Digital Enhanced Cordless Telecommunications (DECT) feature is active and ready to use. DECT technology allows for wireless communication between the router and DECT-compatible devices such as cordless phones or smart home devices. When the DECT symbol is lit, it means that the router is broadcasting a DECT signal and is ready to connect with compatible devices. **

The symbol that is lighting up in the car is the check engine light. This light typically indicates that there is an issue with the vehicle's engine or emissions system. It is important to address this warning as soon as possible by having the vehicle diagnosed by a mechanic to prevent any potential damage or further issues. **

Yes, the symbol of the fish was once a Christian symbol. It is believed to have originated in the early days of Christianity, when followers used it as a secret symbol to identify themselves to one another. The Greek word for fish, "ichthys," was used as an acronym for "Jesus Christ, Son of God, Savior," making it a powerful and meaningful symbol for early Christians. Today, the fish symbol is still used by many Christian denominations to represent their faith. **

The tap symbol lighting up on the Bosch dishwasher SGI33E35EU37 indicates a water supply issue. This could be due to a clogged filter, kinked hose, or a problem with the water inlet valve. It is important to check these components and ensure they are functioning properly to resolve the issue and allow the dishwasher to operate efficiently. If the problem persists, it may be necessary to contact a professional technician for further assistance. **

A symbol is a concrete object or image that represents an abstract idea or concept, while a metaphor is a figure of speech that compares two unlike things without using "like" or "as." Symbols are often used to convey deeper meanings or themes in literature, art, or culture, while metaphors are used to create vivid imagery or make a comparison between two things. Both symbols and metaphors can be powerful tools for communication and can enhance the understanding and impact of a message. **

The strange symbol next to the WLAN symbol could indicate a variety of things, depending on the specific device and its settings. It could represent a notification for a software update, a new message or email, a pending app download, or a system error. It's important to refer to the device's user manual or settings menu to understand the specific meaning of the symbol. **

If you can't find a symbol, it's important to first check if it's available in the font or character set you are using. If it's not there, you may need to use a different font or find a different way to represent the symbol, such as using a different character or creating a custom symbol. Additionally, you can try searching for the symbol online or using a symbol library to find the specific symbol you are looking for. **

A symbol that could fit is a heart. The heart symbolizes love, compassion, and connection, making it a versatile symbol that can be used in various contexts. Whether representing romantic love, friendship, or empathy, the heart symbol is widely recognized and understood across different cultures. Its simple yet powerful design makes it a popular choice for expressing emotions and sentiments. **