vs
QUICK ANSWER
"Cojín" is a noun which is often translated as "cushion", and "almohada" is a noun which is often translated as "pillow". Learn more about the difference between "cojín" and "almohada" below.
el cojín()
A masculine noun is used with masculine articles and adjectives (e.g., el hombre guapo, el sol amarillo).
la almohada()
A feminine noun is almost always used with feminine articles and adjectives (e.g., la mujer bonita, la luna llena).