prerequisite
Intermediate (B1)
IPA: /ˌpriːˈrɛkwɪzɪt/
KK: /priˈrɛkwɪzɪt/
adjective
Definition
Something that is required or necessary before something else can happen or be done.
Example
Having a high school diploma is a prerequisite for enrolling in this college course.
Conversation
Did you know that taking that advanced course has a prerequisite?
Yeah, I think you need to complete the basic level first.
Exactly! I didn't realize it was a prerequisite until I checked the requirements.
Better to know now than to be surprised later!
Synonyms & Antonyms
Synonyms
necessary
essential
required
Antonyms
optional
unnecessary
discretionary
noun
Definition
A requirement that must be met before something else can happen or be done.
Example
Completing the introductory course is a prerequisite for enrolling in the advanced class.
Conversation
I just found out that you need a prerequisite course to enroll in that program.
Really? I didn't know that! What is it about?
It's a basic course on the subject, so I guess it's necessary.
Root Explanation
Prerequisite → It is formed from "pre-" (meaning before) and "requisite" (from Latin "requirere", meaning to require). The word "prerequisite" means something that is required beforehand.
Memory Tip
Think of something that is 'required' ('requisite') 'before' ('pre-') you can proceed — that's what a prerequisite is.
Visually Confused Words
perquisite
requisite
superexquisite
overexquisite