Phrase guide

blue shift

noun · 2 senses · updated from the 2026-07-25 local source snapshot

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

Pronunciation

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  • /ˈbluː.ʃɪft/
  • General-American: Recorded audio is listed in the source snapshot.

1

noun

Meaning 1

An observed phenomenon in which an apparent early Republican lead after the polls close on the night of an election is diminished by the counting of mail-in ballots later in the evening or in the days after Election Day.

Definition source: English Wiktionary via Wiktextract

Usage: US, uncountable

Topics: government, politics

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: red mirage

Antonyms: none provided

2

noun

Meaning 2

Alternative form of blueshift.

Definition source: English Wiktionary via Wiktextract

Usage: alt-of, alternative, uncountable

Topics: natural-sciences, physical-sciences, physics

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

From blue + shift, referring to the Democratic Party's political color, in the case of the first sense.