1. the act of presenting someone to another person for the first time
2. the beginning section of a book, speech, or other work that explains what will follow
3. the act of bringing something into use or operation for the first time

Examples

• The host made introductions between the new guests and other party members.
• The book’s introduction explains the author’s research methods.
• She wrote a brief introduction to her essay about climate change.
• The introduction of new technology improved workplace efficiency.
• The company celebrated the introduction of their latest product.
• This class serves as an introduction to basic chemistry concepts.
• His introduction to jazz music happened during college.