Build Up

  1. Urbanize an area. 2. Gradually develop or increase. 3. Accumulate. 4. Increase in strength or intensity. 5. Establish or enhance a reputation; praise.

Examples:

  • Months before the official campaign began, they had been building up the senator's image.

Origin: sense 1 c. 1400; senses 4–5 c. 1930