Defense department and Executive department

Defense department noun - The federal department responsible for safeguarding national security of the United States; created in 1947.

Executive department and defense department are semantically related. In some cases you can use "Executive department" instead a noun phrase "Defense department".

Executive department noun - A federal department in the executive branch of the government of the United States.

Defense department and executive department are semantically related. Sometimes you can replace phrase "Defense department" with "Executive department", this phrases are similar.