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"Ceja" is a form of "ceja", a noun which is often translated as "eyebrow". "Ombligo" is a noun which is often translated as "belly button". Learn more about the difference between "ombligo" and "ceja" below.
el ombligo()
A masculine noun is used with masculine articles and adjectives (e.g., el hombre guapo, el sol amarillo).
1. (anatomy)
a. belly button (colloquial)
El médico examina el ombligo del bebé.The doctor examines the baby's belly button.
la ceja()
A feminine noun is almost always used with feminine articles and adjectives (e.g., la mujer bonita, la luna llena).