insider
Insider (noun) means someone with privileged knowledge of how a group or organization really operates. Example: “Only an insider could have leaked those documents.”
How to Use Insider
Learner’s notesIn plain EnglishSomeone who is part of a group and therefore knows things outsiders don't.
Word Forms
insiders plural
Fill the Gap
Can you complete this real example?
Only an _____ could have leaked those documents.
Etymology
From inside + the agent suffix -er.
Synonyms
View more →Related Words
Rhymes for insider
See all rhymes for insider →Frequently Asked Questions
What does “insider” mean?
The word “insider” means someone with privileged knowledge of how a group or organization really operates. In plain terms, someone who is part of a group and therefore knows things outsiders don't.
How do you pronounce “insider”?
“Insider” is pronounced ihn-SYD (/ɪnˈsaɪdɚ/ in IPA).
How do you use “insider” in a sentence?
Here is “insider” used in a sentence: “Only an insider could have leaked those documents.”
What part of speech is “insider”?
“Insider” is a noun.
Is “insider” a common word?
“Insider” is an uncommon word in modern English.
What is the difference between an insider and an outsider?
An insider has privileged knowledge of how a group or organization really operates, gained from being part of it, while an outsider lacks that access and firsthand understanding. The distinction is central to phrases like "insider knowledge" versus an outside perspective.
What is a common phrase using insider?
Common phrases include "insider knowledge," "insider information," and "industry insider," all describing privileged access or understanding not available to the general public.