Word
STD
Phoneticsstd
Definitions
01medical infection
n. Stands for Sexually Transmitted Disease. An illness that people pass to each other through sexual contact.
n. Abbreviation for Sexually Transmitted Disease. A clinical term for infections typically contracted through sexual intercourse or other intimate contact.
“Using protection is the best way to prevent getting an STD.”
“Public health initiatives focus on regular screening to reduce the transmission of STDs among high-risk populations.”
Usage
Often used as a countable noun in the plural (STDs).
Teaching tip
In modern medical contexts, 'STI' (Sexually Transmitted Infection) is increasingly preferred as it is more accurate, but 'STD' remains very common in general speech.
02standard
n. A short way to write the word 'standard'.
n. Abbreviation for standard. Frequently used in technical documentation, file naming, or as a namespace in programming.
“The folder was labeled 'std_files' to show they were the basic versions.”
“In C++ programming, 'std' refers to the standard library which contains common functions and data structures.”
Technical
Usage
Usually written in lowercase (std) when used in computer code.
Teaching tip
This is highly specific to technical fields; outside of engineering or coding, people will likely assume the medical meaning.
03save the date
n. Stands for Save The Date. A short message sent before a wedding invitation to tell guests when the event will happen.
n. Abbreviation for Save The Date. A preliminary announcement for a social event, typically a wedding, sent months in advance of the formal invitation.
“We just sent out our wedding STDs to all our friends and family.”
“The couple decided on a digital STD to save money on printing and postage for their summer wedding.”
Humorous · Informal
Teaching tip
This usage is often considered humorous or a 'fail' because it shares an acronym with sexually transmitted diseases. Use with caution.
Synonyms
Domain
Scan code
englishreference.com/q/std