It is very important that a charity can identify its trustees. This is not always as straightforward as it sounds. The trustees are the individuals who take decisions at the governing body of the charity, regardless of their actual title.
Sometimes the charity’s trustees are given other titles, such as governors, councillors, management committee members or directors> The title used is usually in the charity’s governing document.
What matters is the role, not the title. Trustees have specific duties that should be set out in your organisation's constitution or governing document. The company directors of a charitable company are also its charity trustees. Trustees must act collectively to govern the charity and take decisions. Together, the trustees are described in this guidance as the trustee board. Trustees have no authority to act on their own as a trustee unless this has been authorised by the trustee board as a whole.
Some charities use different terms to describe the trustee board, such as management committee, executive committee or board of directors. Again, what matters is the role, not the title.

Our Trustee Board is called Executive Committee : Chairman, Secretary and Treasurer and Trustee's are Management committee members or directors.