declare

Etymology

From Middle English declaren, from Old French declarer, from Latin dēclārō (“to make clear”), from dē- + clārus (“clear”).

verb

1. (obsolete, transitive) To make clear, explain, interpret.
2. (transitive, intransitive) To assert or announce formally, officially, explicitly, or emphatically.
   He declared him innocent.
   declare bankruptcy
   declare victory
3. (card games) To show one's cards in order to score.
4. (intransitive, cricket) For the captain of the batting side to announce the innings complete even though all batsmen have not been dismissed.
   (cricket) declare (an innings) closed
   One South Korean opposition party called on Moon to declare the current air pollution problem a national disaster. Audio (US) (file) 2019, VOA Learning English (public domain)
5. (intransitive, politics) 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.
6. (transitive) To inform government customs or taxation officials of goods one is importing or of income, expenses, or other circumstances affecting one's taxes.
   The prosecution has introduced evidence, including canceled checks, to show that the judge failed to declare part of his income. 2 April 1984, Richard Woodbury, Anastasia Toufexis, “Law: The Trouble with Harry”, in Time
7. (transitive) To make outstanding debts, e.g. taxes, payable.
8. (transitive, programming) To explicitly establish the existence of (a variable, function, etc.) without necessarily describing its content.
   The counter "i" was declared as an integer.