What does onset mean?

Definitions for onset
ˈɒnˌsɛt, ˈɔn-on·set

Here are all the possible meanings and translations of the word onset.

Princeton's WordNet

  1. onset, oncoming(noun)

    the beginning or early stages

    "the onset of pneumonia"

  2. attack, onslaught, onset, onrush(noun)

    (military) an offensive against an enemy (using weapons)

    "the attack began at dawn"


  1. Onset(n.)

    A setting about; a beginning; -- used especially of diseases or pathological symptoms. Shak.

    Etymology: [On + set.]


  1. onset(Noun)

    A rushing or setting upon; an attack; an assault; a storming; especially, the assault of an army.

    Etymology: From . Compare onsettan.

  2. onset(Noun)

    The initial phase of a disease or condition, in which symptoms first become apparent.

    Etymology: From . Compare onsettan.

  3. onset(Noun)

    The initial portion of a syllable, preceding the syllable nucleus.

    Etymology: From . Compare onsettan.

  4. onset(Noun)

    The beginning of a musical note or other sound, in which the amplitude rises from zero to an initial peak.

    Etymology: From . Compare onsettan.

  5. onset(Noun)

    A setting about; a beginning.

    Etymology: From . Compare onsettan.

  6. onset(Noun)

    Anything set on, or added, as an ornament or as a useful appendage.

    Etymology: From . Compare onsettan.

  7. onset(Verb)

    To assault; to set upon.

    Etymology: From . Compare onsettan.

  8. onset(Verb)

    To set about; to begin.

    Etymology: From . Compare onsettan.


  1. Onset

    Onset is a census-designated place in the town of Wareham, Massachusetts, United States. The population was 1,573 at the 2010 census.

Chambers 20th Century Dictionary

  1. Onset

    on′set, n. violent attack: assault: storming. [On and set.]

Military Dictionary and Gazetteer

  1. onset

    A rushing or setting upon; a violent attack; assault; a storming; especially the assault of an army or body of troops upon an enemy or a fort.

Anagrams for onset »

  1. notes, set on, seton, SONET, steno, stone, tones

  2. Set on

How to pronounce onset?

  1. Alex
    US English

How to say onset in sign language?

  1. onset


  1. Chaldean Numerology

    The numerical value of onset in Chaldean Numerology is: 6

  2. Pythagorean Numerology

    The numerical value of onset in Pythagorean Numerology is: 1

Examples of onset in a Sentence

  1. Jacksonville State University:

    Investigators have informed us from the onset that this was a contained situation and that there was not -- nor does there appear to be at this time -- any safety concern for any JSU students arising out of this matter, we as an institution and as a community are committed to maintaining a secure and trusted campus environment for our students, employees, visitors and guests, and we will continue with appropriate vigilance and campus-wide education.

  2. Andrew Wilkinson:

    Regardless of the global dislocation for equities, investors still seem to be preparing for a lift-off in the fed funds rate, there's not a lot to stop the onset of tightening at some point in the near future.

  3. Julio Yero:

    This family contributed greatly to this investigation from the very onset, they provided us valuable information that led us to Colorado, and a lot of things that assisted in preventing maybe more loss of life.

  4. Emmanuela Gakidou:

    The concern in children would be early onset of diabetes.

  5. Catherine Lomen-Hoerth:

    Treatments work best when given prior to symptoms starting or at the very start of symptom onset. This is something not possible with sporadic ALS because it takes time to establish a diagnosis, and by then, the symptoms can be quite advanced, while this treatment would only affect 2% of ALS patients, it may be much more impactful than other treatments for ALS, since it can be administered much earlier in the disease process -- perhaps even before a patient develops symptoms.

Images & Illustrations of onset

  1. onsetonsetonsetonsetonset

Popularity rank by frequency of use


Translations for onset

From our Multilingual Translation Dictionary

Get even more translations for onset »


Find a translation for the onset definition in other languages:

Select another language:

  • - Select -
  • 简体中文 (Chinese - Simplified)
  • 繁體中文 (Chinese - Traditional)
  • Español (Spanish)
  • Esperanto (Esperanto)
  • 日本語 (Japanese)
  • Português (Portuguese)
  • Deutsch (German)
  • العربية (Arabic)
  • Français (French)
  • Русский (Russian)
  • ಕನ್ನಡ (Kannada)
  • 한국어 (Korean)
  • עברית (Hebrew)
  • Gaeilge (Irish)
  • Українська (Ukrainian)
  • اردو (Urdu)
  • Magyar (Hungarian)
  • मानक हिन्दी (Hindi)
  • Indonesia (Indonesian)
  • Italiano (Italian)
  • தமிழ் (Tamil)
  • Türkçe (Turkish)
  • తెలుగు (Telugu)
  • ภาษาไทย (Thai)
  • Tiếng Việt (Vietnamese)
  • Čeština (Czech)
  • Polski (Polish)
  • Bahasa Indonesia (Indonesian)
  • Românește (Romanian)
  • Nederlands (Dutch)
  • Ελληνικά (Greek)
  • Latinum (Latin)
  • Svenska (Swedish)
  • Dansk (Danish)
  • Suomi (Finnish)
  • فارسی (Persian)
  • ייִדיש (Yiddish)
  • հայերեն (Armenian)
  • Norsk (Norwegian)
  • English (English)

Discuss these onset definitions with the community:

Word of the Day

Would you like us to send you a FREE new word definition delivered to your inbox daily?

Please enter your email address:


Use the citation below to add this definition to your bibliography:


"onset." Definitions.net. STANDS4 LLC, 2020. Web. 7 Aug. 2020. <https://www.definitions.net/definition/onset>.

Are we missing a good definition for onset? Don't keep it to yourself...

Free, no signup required:

Add to Chrome

Get instant definitions for any word that hits you anywhere on the web!

Free, no signup required:

Add to Firefox

Get instant definitions for any word that hits you anywhere on the web!

Nearby & related entries:

Alternative searches for onset:

Thanks for your vote! We truly appreciate your support.