vs 

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"Each other" is a phrase which is often translated as "se", and "to each other" is a phrase which is often translated as "entre sí". Learn more about the difference between "each other" and "to each other" below.
each other(
ich
 
uh
-
thuhr
)
A phrase is a group of words commonly used together (e.g., once upon a time).
phrase
a. se
Ana and Ben always cook each other food on their anniversary.Ana y Ben siempre se preparan comida en su aniversario.
Lupita and Sam were kissing each other when I came into the room.Lupita y Sam se estaban besando cuando entré al cuarto.
b. el uno al otro
(m) means that a noun is masculine. Spanish nouns have a gender, which is either feminine (like la mujer or la luna) or masculine (like el hombre or el sol).
(M)
(masculine)
They always help each other.Siempre se ayudan el uno al otro.
c. la una a la otra
(f) means that a noun is feminine. Spanish nouns have a gender, which is either feminine (like la mujer or la luna) or masculine (like el hombre or el sol).
(F)
(feminine)
Did you see how Gemma and Elaine were looking at each other?¿Viste cómo Gemma y Elaine se miraban la una a la otra?
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to each other(
tu
 
ich
 
uh
-
thuhr
)
A phrase is a group of words commonly used together (e.g., once upon a time).
phrase
a. entre sí
Attach the felt pieces to each other with glue.Junta los pedazos de fieltro entre sí con pega.
b. entre ellos
The boys refused to talk to each other.Los chicos se negaron a hablar entre ellos.
c. el uno al otro
The two cats got used to each other and even became friends.Los dos gatos se acostumbraron el uno al otro y hasta se hicieron amigos.
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