Alone vs Single

When to use each in English, with meaning, register, and examples.

Alone

Top 1,000 (very common) A2

Single

Top 1,000 (very common) A2 adjective

	Alone	Single
Pronunciation	🇬🇧 /["/əˈləʊn/"]/ 🇺🇸 /["/əˈləʊn/"]/	🇬🇧 /["/ˈsɪŋɡl/"]/ 🇺🇸 /["/ˈsɪŋɡl/"]/
Meaning	by yourself; not with anyone else	One person or thing.
Example	I like to spend some time alone to think about my day.	He prefers to live a single life without any commitments.
Register	Neutral	Neutral
How common	Top 1,000 (very common)	Top 1,000 (very common)
CEFR level	A2	A2
Part of speech		adjective
Collocations	be, sit, stand, very much, all, completely, with, be, sit, stand, very much, all, completely, with, be, sit, stand, very much, all, completely, with	single person, single item, single ticket, single life, single parent
Antonyms	together, accompanied, with others	multiple, coupled, together
Common mistakes	'alone' vs 'lonely', confused when feeling lonely, Using 'aloneness' as a noun incorrectly, Saying 'I am alone' when needing to report being safe; prefer 'I am okay.'	Mixing up with 'singly' which has a different meaning., Using 'single' when referring to multiple items or people., Confusing 'single' with 'alone', which has a different connotation.
Usage notes	Use 'alone' when referring to a state of being by oneself. It can be used positively (enjoying solitude) or negatively (feeling lonely). Avoid using it in overly formal contexts where 'solitary' might be preferred.	Used to describe someone not in a relationship. In formal contexts, it can refer to a single item. Avoid using in very casual or slang conversations where 'solo' might be more suitable.

See it in real clips

A Knight Of The Seven Kingdoms › S1 E1

I'm off for Ashford. Alone.

Breaking Bad › S1 E1

Hey. Uh, it's me. I'm alone.

But when she saw this kid killing his father, she was in the house alone.

A Knight Of The Seven Kingdoms › S1 E1

I'm off for Ashford. Alone.

Breaking Bad › S1 E1

Hey. Uh, it's me. I'm alone.

Alone

in every single American war.

Every single thing.

Band Of Brothers › S1 E1

Every single time.

in every single American war.

Every single thing.

Single

Frequently asked questions: Alone vs Single

What's the difference between Alone and Single?

Alone: by yourself; not with anyone else Single: One person or thing.

Are Alone and Single the same CEFR level?

Alone: A2, Single: A2 on the CEFR scale.

Can you show an example of each?

Alone: I like to spend some time alone to think about my day. Single: He prefers to live a single life without any commitments.

Can I use Alone and Single interchangeably?

Not always. Alone and Single are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.