To build is to make or create something, usually by putting parts together step by step. For example, you can build a house, a toy, or even a computer by using tools and materials. It can also mean to make something stronger, like building muscles by exercising or building trust by being kind and honest. Building takes time, effort, and care to make something good and strong. Examples: • They will build a sandcastle on the beach. • He wants to build a table for his room. • She is working hard to build her confidence. • We need to build a strong team for the project. • The workers are building a new school in the town.