English Reference

Word

specifications

Phoneticsspec·i·fi·ca·tions

US/ˌspɛsəfəˈkeɪʃənz/

UK/spˌɛsɪfɪkˈeɪʃənz/

Definition

n. a detailed list of instructions or rules that explain exactly how something must be made or how it should work.

n. a set of documented requirements that provide an exact description of an object, material, or process. Usually plural in this sense.

Examples

“The new laptop meets all my technical specifications.”

“Before we start building the engine, we must review the safety specifications provided by the engineering team.”

“The architect revised the structural specifications to ensure the building could withstand the seismic activity common in the region without exceeding the client's strict budget.”

Examples

simple

“The new laptop meets all my technical specifications.”

contextual

“Before we start building the engine, we must review the safety specifications provided by the engineering team.”

complex

“The architect revised the structural specifications to ensure the building could withstand the seismic activity common in the region without exceeding the client's strict budget.”

Usage

Often shortened to 'specs' in informal professional contexts.

Teaching tip

While 'specification' can be singular when referring to one specific detail, the plural 'specifications' is the standard way to refer to the complete document or set of rules.

Real-World Examples

“Their combined generating potential has been reported at about 5,700 megawatts, although the figures and specifications could change because the projects remain at the planning stage.”
Al Jazeera · 21 Aug 2026
“Without full, detailed specifications for these satellites, there’s no way to properly tally the amount of material we’re talking about.”
Ars Technica · 20 Aug 2026
“Ultimately, architects of the FIDO specifications decided that it was generally safe to store passkeys on the devices.”
Ars Technica · 11 Aug 2026

Synonyms

This entry

Level
B2 · Upper Intermediate
Frequency
Frequent
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