QUICK ANSWER
"Alone" is an adverb which is often translated as "solo", and "by yourself" is a phrase which is often translated as "por ti mismo". Learn more about the difference between "alone" and "by yourself" below.
alone(
uh
-
lon
)
An adverb is a word that describes a verb, an adjective, or other adverbs (e.g. to run quickly, very tired).
adverb
1. (by oneself)
a. solo
I don't feel comfortable when I'm home alone.No me siento cómodo cuando estoy en casa solo.
b. a solas
We were alone after dinner.Estuvimos a solas después de la cena.
2. (only)
a. solo
Your parents alone can give you permission.Solo tus papás te pueden dar permiso.
b. solamente
You alone know what decision will make you happy.Solamente tú sabes qué decisión te hará feliz.
3. (by oneself)
a. solo
He likes to work alone.Le gusta trabajar solo.
An adjective is a word that describes a noun (e.g. the big dog).
adjective
4. (by oneself)
a. a solas
We were alone after dinner.Estuvimos a solas después de la cena.
Copyright © Curiosity Media Inc.
by yourself(
bay
 
yuhr
-
sehlf
)
A phrase is a group of words commonly used together (e.g once upon a time).
phrase
1. (general)
a. por ti mismo
A word or phrase used to refer to the second person informal “tú” by their conjugation or implied context (e.g., How are you?).
(informal)
(singular, masculine or mixed gender)
You must make this decision by yourself.Debes tomar esta decisión por ti mismo.
b. por ti misma
A word or phrase used to refer to the second person informal “tú” by their conjugation or implied context (e.g., How are you?).
(informal)
(singular, femenine)
Are you going to the dance by yourself, or do you have a date?¿Vas al baile por ti misma, o tienes una pareja?
c. por tu cuenta
A word or phrase used to refer to the second person informal “tú” by their conjugation or implied context (e.g., How are you?).
(informal)
(singular)
I can't believe you moved the couch by yourself.No puedo creer que hayas movido el sofá por tu cuenta.
d. a solas
I think it's boring to live by yourself.Yo creo que es aburrido vivir a solas.
e. por sí mismo
A word or phrase used to refer to the second person formal “usted” by their conjugation or implied context (e.g., usted).
(formal)
(singular, masculine)
Do you plan to deliver the presentation by yourself?¿Planea hacer la presentación por sí mismo?
f. por sí misma
A word or phrase used to refer to the second person formal “usted” by their conjugation or implied context (e.g., usted).
(formal)
(singular, feminine)
Are you going to the conference by yourself?¿Va a ir a la conferencia por sí misma?
g. por su cuenta
A word or phrase used to refer to the second person formal “usted” by their conjugation or implied context (e.g., usted).
(formal)
(singular)
You don't have to organize the meeting by yourself.No tiene que organizar la reunión por su cuenta.
Copyright © Curiosity Media Inc.