Meaning

• To make clear, explain, interpret.

• To make a declaration.

• To show one's cards in order to score.

• To announce one’s support, choice, opinion, etc.

  "He declared him innocent."

• For the captain of the batting side to announce the innings complete even though all batsmen have not been dismissed.

• To announce something formally or officially.

  "declare bankruptcy"

• For a constituency in an election to officially announce the result

  "Houghton and Sunderland South was the first constituency to declare in the 2015 general election."

• To affirm or state something emphatically.

• To inform government customs or taxation officials of goods one is importing or of income, expenses, or other circumstances affecting one's taxes.

• To make outstanding debts, e.g. taxes, payable.

• To explicitly establish the existence of (a variable, function, etc.) without necessarily describing its content.

  "The counter "i" was declared as an integer."