What does infra mean?
The prefix infra- is used to form words that mean below or under. It is often used in formal or technical contexts, such as in science, engineering, or business. Infra- is derived from the Latin prefix 'infra', which means 'below' or 'under'. This prefix is useful for creating words that describe something that is located or situated below something else. For example, 'infrastructure' refers to the underlying systems and structures that support a city or organization. Infra- is a versatile prefix that can be used to create a wide range of words, from 'infrared' to 'infrasound'. Understanding the meaning and usage of infra- can help to clarify the meanings of unfamiliar words and expand one's vocabulary.
prefixUsed to form words that mean below or under.
- below or under
- used to indicate something is below or under something else
"The infrastructure of the city includes roads, bridges, and utilities."
"The infrared radiation was detected by the sensor."
"The infrastructure of the city needs to be upgraded."
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of infra
The prefix infra- comes from the Latin prefix 'infra', which means 'below' or 'under'. This prefix has been used in English since the 15th century to form words that describe something that is located or situated below something else. Infra- is related to other prefixes such as 'inferior' and 'infer', which also convey a sense of something being below or under something else.
Usage notes
Often used in formal or technical contexts, such as in science, engineering, or business.