Aaronic Priesthood
The lesser of the two divivsions of the LDS priesthood.
Bishop
Presiding high priest of a local LDS ward.
Endowment
Ceremony in LDS temples in which worthy membrs learn sacred (secret) details of the LDS plan of salvation.
First Presidency
Highest leadership and authoity group in the LDS church. Normally consists of the president of the church and his two counselors.