synecdoche \si-NEK-duh-kee\, noun:
a figure of speech by which a part is put for the whole or whole for a part or general for the special or vice versa
Writers rely heavily on words like ‘misery’, ‘hopelessness’, and ‘dismay’ as synecdoches for depression.
Hm, not a word I plan on using in everyday life, but a very interesting one nontheless. Never seen it before in my life. As a matter of fact, neither has Firefox or WordPress, as both are undelining it red in my Post box.
Learn something new everyday is my motto.