top brass (also brass, especially in AmE) noun [sing. with sing./pl. verb] (informal)

the people who are in the most important positions in a company or an organization:

All the top brass was/were at the ceremony.

The restructuring of the company will not affect the top brass.

• corporation
• corporation tax
• corporatize
• correction
• correspond
• correspondence
• correspondence course
• correspondent
• correspondent bank
• corresponding
• corrupt
• corruption
• cosmeceutical
• cosmetic
• cost
• cost accounting
• cost allocation
• cost and freight
• cost base
• cost benefit
• cost-benefit analysis
• cost centre
• cost-conscious
• cost containment
• cost control