noun · 6 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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/flʌkt͡ʃuːˈeɪʃən/
US:Recorded audio is listed in the source snapshot.
rhymes with -eɪʃən
CMU ARPABET:F L AH2 K CH UW0 EY1 SH AH0 N
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
1
noun
Meaning 1
A motion like that of waves; a moving in this and that direction; an irregular rising and falling.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
Examples
the fluctuations of the sea
Meaning relationships
Synonyms: none provided
Antonyms: none provided
2
noun
Meaning 2
A wavering; unsteadiness.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
Examples
fluctuations of opinion
fluctuations of prices
Meaning relationships
Synonyms: none provided
Antonyms: none provided
3
noun
Meaning 3
In medicine, a wave-like motion or undulation of a fluid in a natural or abnormal cavity (e.g. pus in an abscess), which is felt during palpation or percussion.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
4
noun
Meaning 4
the quality of being unsteady and subject to changes
Definition source: Princeton WordNet 3.0
Examples
he kept a record of price fluctuations
Meaning relationships
Synonyms: wavering
Antonyms: none provided
Broader terms: irregularity, unregularity
Narrower terms: scintillation
5
noun
Meaning 5
an instance of change; the rate or magnitude of change
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.