Synecdoche

UK: /sɪˈnɛkdəki/

In literature, synecdoche is often used to give deeper meaning, such as referring to a car as 'wheels'.

The phrase 'all hands on deck' is an example of synecdoche, where 'hands' represents the sailors.

Using synecdoche, the author referred to the entire orchestra as 'the strings' to emphasize the violins.