hang ‧ o ‧ ver /ˈhæŋəʊvə $ -oʊvər/ BrE AmE noun [countable]
1 . a pain in your head and a feeling of sickness that you get the day after you have drunk too much alcohol:
I had a terrible hangover the next day.
2 . a hangover from something something from the past that still exists or happens but is no longer necessary or useful:
This feeling was a hangover from her schooldays.
an institution which is a hangover from Victorian times
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THESAURUS
▪ headache a pain in your head:
Looking at a computer for a long time can give you a headache.
▪ hangover a headache and feeling of sickness that you get the day after you have drunk too much alcohol:
The next day I had a terrible hangover.
▪ migraine /ˈmiːɡreɪn, ˈmaɪ- $ ˈmaɪ-/ a very bad headache, which makes you feel sick and have difficulty seeing:
He has suffered from migraines all his life.