ai

"AI" is a widely used abbreviation in modern English, standing for "Artificial Intelligence." It has a core technical meaning but is also used more loosely in everyday conversation. Here are the most common ways you will encounter it.

1nounartificial intelligence (technology field)

AI refers to the branch of computer science that focuses on building machines or software that can do things that normally require human thinking — like understanding language, recognizing images, or making decisions. Think of it as teaching computers to 'think' in a human-like way.

technology, science · Modern, widely used since the mid-20th century, extremely common today

Many companies are investing heavily in AI to automate repetitive tasks.

AI is used in hospitals to help doctors detect diseases from medical scans.

The development of AI raises important questions about the future of work.

2nounan AI system or tool

In everyday conversation, people often say 'an AI' to refer to a specific program or system that uses artificial intelligence — like a chatbot, a voice assistant, or an image generator. You are essentially calling the tool itself 'an AI.'

everyday language, technology · Modern, very common in informal and professional speech

I used an AI to help me write my cover letter.

This AI can generate realistic images from a text description.

Some people worry that AIs will replace human customer service agents.

3adjectivepowered by or relating to artificial intelligence

You will often see 'AI' used before a noun to describe something that is built on or driven by artificial intelligence technology — like an AI tool, an AI model, or an AI assistant.

technology, business, everyday language · Modern, extremely common

The company launched a new AI assistant that can answer customer questions.

AI-generated content is becoming harder to distinguish from human writing.

She enrolled in an AI course to improve her career prospects.