Quick meaning
A temporary code sent to your phone or email that can only be used once for a single login or transaction.
Think of it like this
Like a single-use entry ticket — it lets you in once and then it expires.
Where you may see this
You may see this in login screens, warning messages, banking apps, or scam-prevention advice.
Why it matters
Understanding this word helps you protect your money, personal information, and online accounts.
Say it simply
OTP (One-Time Password) means: A temporary code sent to your phone or email that can only be used once for a single login or transaction.