EN

Synonyms for once

  • adverb
  • conjunction

Most common

formerly erstwhile whilom

All synonyms

Adverb

1. Formerly — formerly; during some period in the past

formerly, erstwhile, whilom, erst formal dated

Other

one day, yance UK, sometimes dated, onced rare, wunst dated

Conjunction

when, immediately, as soon as, no sooner than

Antonyms

again, twice, later

All antonyms of once →

Definitions

  1. adv. 1

    Formerly; during some period in the past.

    I once had a motorbicycle.

  2. conj. 1

    As soon as; when; after.

    Near-synonym: immediately

Related words

Word family
once-over-lightly once-over
Phrases
at once once again once more all at once once and again for once

Popularity over time

Word1850 → 2019Trend
oncerising
whilomsteady

Use in printed books, per decade from 1850 to 2019.

By length

4 letters
when1, erst
5 letters
yance, onced, wunst
6 letters
whilom
8 letters
formerly3
9 letters
sometimes2, erstwhile2
11 letters
immediately5

The small number after each word is its number of syllables (formerly3 = 3 syllables).

In other languages

Français
jadis
Italiano
un tempo
Español
otrora
Deutsch
früher
Català
alguna vegada