Как по Английски будет декларант

noun

A person or party who makes a formal declaration.

Примеры использования:

As in the first instance above, i find this hearsay evidence to be necessary as the declarant is no…

adjective

Making or having made a formal declaration.

Примеры использования:

The declarant state

noun

The player whose bid establishes the suit of the contract and who must therefore play both their own hand and the exposed hand of the dummy.

Примеры использования:

This player then becomes the declarer; the two opponents are the defenders.