verb · 5 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
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.
US:/ˈɑsɪleɪt/
US:Recorded audio is listed in the source snapshot.
CMU ARPABET:AA1 S AH0 L EY2 T
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
1
verb
Meaning 1
To swing back and forth, especially if with a regular rhythm.
Definition source: English Wiktionary via Wiktextract
Usage: intransitive
Examples
A pendulum oscillates slower as it gets longer.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
2
verb
Meaning 2
To vacillate between conflicting opinions, etc.
Definition source: English Wiktionary via Wiktextract
Usage: intransitive
Examples
The mood for change oscillated from day to day.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
3
verb
Meaning 3
To vary above and below a mean value.
Definition source: English Wiktionary via Wiktextract
Usage: intransitive
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
4
verb
Meaning 4
move or swing from side to side regularly
Definition source: Princeton WordNet 3.0
Examples
the needle on the meter was oscillating
Meaning relationships
Synonyms: vibrate
Antonyms: none provided
Broader terms: swing, sway
Narrower terms: hunt, librate
5
verb
Meaning 5
be undecided about something; waver between conflicting positions or courses of action
Definition source: Princeton WordNet 3.0
Examples
He oscillates between accepting the new position and retirement
Meaning relationships
Synonyms: hover, vibrate, vacillate
Antonyms: none provided
Broader terms: hesitate, waver, waffle
Narrower terms: shillyshally
History
Etymology
First attested in 1726; borrowed from Latin ōscillātus, perfect passive participle of Latin ōscillō (“to swing”) (see -ate (verb-forming suffix)), from ōscillum (“a swing”), usually identified with ōscillum (“a little face or mask hung on a tree that sways with the wind”), diminutive of ōs (“mouth, face”). See also osculate.
Across languages
Translations
44 source translations are retained for this English entry.
Bulgarian:
вибрирам
(vibriram)
— to swing back and forth, especially if with a regular rhythm
Bulgarian:
осцилирам
(osciliram)
— to swing back and forth, especially if with a regular rhythm
Catalan:
oscil·lar
— to swing back and forth, especially if with a regular rhythm
Chinese Mandarin:
振盪 /振荡
(zhèndàng)
— to swing back and forth, especially if with a regular rhythm
Czech:
kmitat
— to swing back and forth, especially if with a regular rhythm
Czech:
oscilovat
— to swing back and forth, especially if with a regular rhythm
Estonian:
võnkliikuma
— to swing back and forth, especially if with a regular rhythm
Finnish:
värähdellä
— to swing back and forth, especially if with a regular rhythm
Finnish:
heilua
— to swing back and forth, especially if with a regular rhythm
Finnish:
oskilloida
— to swing back and forth, especially if with a regular rhythm
French:
osciller
— to swing back and forth, especially if with a regular rhythm
Galician:
oscilar
— to swing back and forth, especially if with a regular rhythm
German:
schwingen
— to swing back and forth, especially if with a regular rhythm
German:
pendeln
— to swing back and forth, especially if with a regular rhythm
German:
oszillieren
— to swing back and forth, especially if with a regular rhythm
German:
vibrieren
— to swing back and forth, especially if with a regular rhythm
German:
zittern
— to swing back and forth, especially if with a regular rhythm
German:
changieren
— to swing back and forth, especially if with a regular rhythm
Greek:
ταλαντεύομαι
(talantévomai)
— to swing back and forth, especially if with a regular rhythm
Greek:
διακυμαίνομαι
(diakymaínomai)
— to swing back and forth, especially if with a regular rhythm
Greek:
αιωρούμαι
(aioroúmai)
— to swing back and forth, especially if with a regular rhythm
Hebrew:
תָּנַד
(tanad)
— to swing back and forth, especially if with a regular rhythm
Hebrew:
תָּנְדָה
(tanda)
— to swing back and forth, especially if with a regular rhythm
Hebrew:
הִתְנוֹדֵד
(hitnoded)
— to swing back and forth, especially if with a regular rhythm
Hebrew:
הִתְנוֹדְדָה
(hitnodeda)
— to swing back and forth, especially if with a regular rhythm
Hungarian:
oszcillál
— to swing back and forth, especially if with a regular rhythm
Irish:
ascalaigh
— to swing back and forth, especially if with a regular rhythm
Italian:
oscillare
— to swing back and forth, especially if with a regular rhythm
Japanese:
振動する
(shindō-suru)
— to swing back and forth, especially if with a regular rhythm
Māori:
piupiu
— to swing back and forth, especially if with a regular rhythm
Māori:
kōpiupiu
— to swing back and forth, especially if with a regular rhythm
Polish:
oscylować
— to swing back and forth, especially if with a regular rhythm
Portuguese:
oscilar
— to swing back and forth, especially if with a regular rhythm
Romanian:
oscila
— to swing back and forth, especially if with a regular rhythm
Russian:
колеба́ться
(kolebátʹsja)
— to swing back and forth, especially if with a regular rhythm
Russian:
кача́ться
(kačátʹsja)
— to swing back and forth, especially if with a regular rhythm
Russian:
осцилли́ровать
(oscillírovatʹ)
— to swing back and forth, especially if with a regular rhythm
Slovene:
nihati
— to swing back and forth, especially if with a regular rhythm
Slovene:
zanihati
— to swing back and forth, especially if with a regular rhythm
Spanish:
oscilar
— to swing back and forth, especially if with a regular rhythm
Swedish:
pendla
— to swing back and forth, especially if with a regular rhythm
Ukrainian:
осцилювати
(oscyljuvaty)
— to swing back and forth, especially if with a regular rhythm
Ukrainian:
колива́тися
(kolyvátysja)
— to swing back and forth, especially if with a regular rhythm
Welsh:
osgiliadu
— to swing back and forth, especially if with a regular rhythm