Meaning of DECLARATION in English

n.1 the act or process of declaring.

2 a a formal, emphatic, or deliberate statement or announcement. b a statement asserting or protecting a legal right.

3 a written public announcement of intentions, terms of an agreement, etc.

4 Cricket an act of declaring an innings closed.

5 Cards a the naming of trumps. b an announcement of a combination held.

6 Law a a plaintiff's statement of claim. b an affirmation made instead of taking an oath.

7 (in full declaration of the poll) a public official announcement of the votes cast for candidates in an election.

Etymology: ME f. L declaratio (as DECLARE)

Oxford English vocab.      Оксфордский английский словарь.