© 2026 Sloth Lingo. Learn easy. Lounge wisely.

once

Intermediate (B1)

IPA: /wʌns/

KK: /wʌns/

adjective
Definition

Referring to something that existed or happened in the past but is no longer the case.


Example

The once bustling town is now quiet and empty.


Conversation
Sloth A
Did you know that this building was the once capital of the country?
Sloth B
Really? I had no idea it had such a history.
Sloth A
Yeah, it’s interesting how things change over time.
Sloth B
For sure! It makes you appreciate the past even more.

Synonyms & Antonyms
Synonyms
former
previous
past
Antonyms
current
future
present
adverb
Definition

At a single time; one time only.


Example

I visited that museum once when I was a child.


Conversation
Sloth A
I visited that new coffee shop once last week.
Sloth B
Oh really? How was it?
Sloth A
It was great! I think I’ll go again once I have some free time.
Sloth B
conjunction
Definition

At the time that something happens; as soon as something occurs.


Example

Once the sun sets, it gets dark quickly.


Conversation
Sloth A
Do you remember that time we went hiking?
Sloth B
Yeah, it was so much fun!
Sloth A
We should do it again once the weather gets better.
Sloth B
noun
Definition

A single occurrence or event; one time.


Example

I only visited that place once during my vacation.


Conversation
Sloth A
Do you remember that time we went hiking in the mountains?
Sloth B
Yeah, I loved it! We should do that once more this summer.
Sloth A
Definitely! It was such a great adventure.
Sloth B
Root Explanation

Once → This word originates from Old English 'ānce', meaning one time or a single occasion. It refers to something happening a single time.

Memory Tip

Think of 'one' to remember that 'once' means something that happens a single time.

Visually Confused Words
ponce
ounce
nonce
bonce
one
sconce
rounce
roncet
Is this page helpful?
You should! It’s nice to try new places.

Synonyms & Antonyms
Synonyms
formerly
previously
initially
Antonyms
never
always
repeatedly
Definitely! I can't wait to explore more trails.

Synonyms & Antonyms
Synonyms
whenever
as
when
Antonyms
never
always
seldom
For sure, and we can explore a new trail this time.

Synonyms & Antonyms
Synonyms
occasion
instance
event
Antonyms
never
always
repetition