Meaning of -CY in English

-CY

transcription, транскрипция: [ -si ]

1.

-cy replaces ‘-te’, ‘-t’, and ‘-tic’ at the end of some adjectives to form nouns referring to the state or quality described by the adjective.

...the emotional intimacy of a family...

They were sworn to secrecy.

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2.

-cy is added to some nouns referring to people with a particular rank or post in order to form nouns that refer to this rank or post.

He is likely to retain the England captaincy.

...the university chaplaincy.

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Collins COBUILD Advanced Learner's English Dictionary.      Английский словарь Коллинз COBUILD для изучающих язык на продвинутом уровне.