Standard Lemma guide
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.
noun
A drawing, document, etc. that has been marked for correction or modification.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
noun
The maximum speed, temperature, pressure, etc., at which a device (such as the engine in a car, aircraft, etc.) is designed to operate.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
verb
To mark a drawing or document for correction or modification.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
verb
To operate a device at one or more redlines.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
verb
To operate a device at one or more redlines.
To run an internal combustion engine to its maximum or maximum recommended speed.
Definition source: English Wiktionary via Wiktextract
Topics: automotive, transport, vehicles
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
verb
To deny or complicate access to services (such as banking, insurance, or healthcare) to residents in specific, often racially determined, areas.
Definition source: English Wiktionary via Wiktextract
Usage: Canada, US
Qualifier: urban studies
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: greenline
verb
To achieve audio levels that will cause clipping (indicated by red in an audio meter).
Definition source: English Wiktionary via Wiktextract
Topics: audio, electrical-engineering, engineering, natural-sciences, physical-sciences
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
verb
discriminate in selling or renting housing in certain areas of a neighborhood
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
Broader terms: discriminate, separate, single out
History
From red + line, originating with the frequent use of red pen or pencil to mark corrections on drawings and documents (1), and the red markings on a tachometer (2).
