Synecdoche (noun)
sin-ek-dok-ee
a figure of speech in which a part is used for the whole or the whole for a part, the special for the general or the general for the special, as in ten sail for ten ships or a Croesus for a rich man.
1350–1400;
Example sentences
“He said there were ten truncheons coming down the road, the synecdoche offered a violent image.”