To make known or state clearly, especially in explicit or formal terms. She declared her intention to run for office.
To announce officially; proclaim. The government declared a state of emergency.
To state emphatically or authoritatively; affirm. He declared that he was innocent of the charges.
To make a full statement of (goods, income, etc.) for the purpose of taxation. You must declare all your earnings on your tax return.
To announce one's candidacy for an election. She declared for the presidency last week.
In computing, to specify the identifier and attributes of (a variable, function, etc.) without providing its implementation. Before you can use the array, you must declare it.
(of a cricket captain) to close the team's innings voluntarily. England declared at 350 for six.